Home / 970,360,856.70-1,455,541,285.05-865,552,818.30

Finding the Fourth Proportional to 970,360,856.70, 1,455,541,285.05 and 865,552,818.30

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Solution

The fourth proportional to 970,360,856.70, 1,455,541,285.05 and 865,552,818.30 is: 1,298,329,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,360,856.70 : 1,455,541,285.05 = 865,552,818.30 : x
  2. Step 2: Convert to fraction form
    970,360,856.70/1,455,541,285.05 = 865,552,818.30/x
  3. Step 3: Cross multiply
    970,360,856.70x = 1,455,541,285.05 × 865,552,818.30
  4. Step 4: Simplify right side
    970,360,856.70x = 1,259,847,861,427,031,040
  5. Step 5: Solve for x
    x = 1,259,847,861,427,031,040/970,360,856.70
  6. Step 6: Final answer
    x = 1,298,329,227.45

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Double scale
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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.