Home / 1,207,232,145.40-1,810,848,218.10-656,234,116.60

Finding the Fourth Proportional to 1,207,232,145.40, 1,810,848,218.10 and 656,234,116.60

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Solution

The fourth proportional to 1,207,232,145.40, 1,810,848,218.10 and 656,234,116.60 is: 984,351,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,232,145.40 : 1,810,848,218.10 = 656,234,116.60 : x
  2. Step 2: Convert to fraction form
    1,207,232,145.40/1,810,848,218.10 = 656,234,116.60/x
  3. Step 3: Cross multiply
    1,207,232,145.40x = 1,810,848,218.10 × 656,234,116.60
  4. Step 4: Simplify right side
    1,207,232,145.40x = 1,188,340,380,701,537,536
  5. Step 5: Solve for x
    x = 1,188,340,380,701,537,536/1,207,232,145.40
  6. Step 6: Final answer
    x = 984,351,174.90

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Half scale
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Double scale
Find fourth proportional to 1,207,232,146.40, 1,810,848,219.60 and 656,234,117.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.