Home / 1,207,232,153.40-1,810,848,230.10-656,234,124.60

Finding the Fourth Proportional to 1,207,232,153.40, 1,810,848,230.10 and 656,234,124.60

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Solution

The fourth proportional to 1,207,232,153.40, 1,810,848,230.10 and 656,234,124.60 is: 984,351,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,232,153.40 : 1,810,848,230.10 = 656,234,124.60 : x
  2. Step 2: Convert to fraction form
    1,207,232,153.40/1,810,848,230.10 = 656,234,124.60/x
  3. Step 3: Cross multiply
    1,207,232,153.40x = 1,810,848,230.10 × 656,234,124.60
  4. Step 4: Simplify right side
    1,207,232,153.40x = 1,188,340,403,063,132,928
  5. Step 5: Solve for x
    x = 1,188,340,403,063,132,928/1,207,232,153.40
  6. Step 6: Final answer
    x = 984,351,186.90

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Double scale
Find fourth proportional to 1,207,232,154.40, 1,810,848,231.60 and 656,234,125.60
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.