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Finding the Fourth Proportional to 478,981,806.40, 718,472,709.60 and 478,981,806.40

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Solution

The fourth proportional to 478,981,806.40, 718,472,709.60 and 478,981,806.40 is: 718,472,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,981,806.40 : 718,472,709.60 = 478,981,806.40 : x
  2. Step 2: Convert to fraction form
    478,981,806.40/718,472,709.60 = 478,981,806.40/x
  3. Step 3: Cross multiply
    478,981,806.40x = 718,472,709.60 × 478,981,806.40
  4. Step 4: Simplify right side
    478,981,806.40x = 344,135,356,293,310,592
  5. Step 5: Solve for x
    x = 344,135,356,293,310,592/478,981,806.40
  6. Step 6: Final answer
    x = 718,472,709.60

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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.