Home / 10,221,552,003.10-15,332,328,004.65-8,476,724,911.90

Finding the Fourth Proportional to 10,221,552,003.10, 15,332,328,004.65 and 8,476,724,911.90

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Solution

The fourth proportional to 10,221,552,003.10, 15,332,328,004.65 and 8,476,724,911.90 is: 12,715,087,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221,552,003.10 : 15,332,328,004.65 = 8,476,724,911.90 : x
  2. Step 2: Convert to fraction form
    10,221,552,003.10/15,332,328,004.65 = 8,476,724,911.90/x
  3. Step 3: Cross multiply
    10,221,552,003.10x = 15,332,328,004.65 × 8,476,724,911.90
  4. Step 4: Simplify right side
    10,221,552,003.10x = 129,967,926,754,438,660,096
  5. Step 5: Solve for x
    x = 129,967,926,754,438,660,096/10,221,552,003.10
  6. Step 6: Final answer
    x = 12,715,087,367.85

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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.