Home / 8,112,152,077.80-12,168,228,116.70-7,543,935,360.60

Finding the Fourth Proportional to 8,112,152,077.80, 12,168,228,116.70 and 7,543,935,360.60

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Solution

The fourth proportional to 8,112,152,077.80, 12,168,228,116.70 and 7,543,935,360.60 is: 11,315,903,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112,152,077.80 : 12,168,228,116.70 = 7,543,935,360.60 : x
  2. Step 2: Convert to fraction form
    8,112,152,077.80/12,168,228,116.70 = 7,543,935,360.60/x
  3. Step 3: Cross multiply
    8,112,152,077.80x = 12,168,228,116.70 × 7,543,935,360.60
  4. Step 4: Simplify right side
    8,112,152,077.80x = 91,796,326,365,420,290,048
  5. Step 5: Solve for x
    x = 91,796,326,365,420,290,048/8,112,152,077.80
  6. Step 6: Final answer
    x = 11,315,903,040.90

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Double scale
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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.