Home / 497,607,624.50-686,613,491.25-288,715,882.10

Finding the Fourth Proportional to 497,607,624.50, 686,613,491.25 and 288,715,882.10

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Solution

The fourth proportional to 497,607,624.50, 686,613,491.25 and 288,715,882.10 is: 398,378,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,607,624.50 : 686,613,491.25 = 288,715,882.10 : x
  2. Step 2: Convert to fraction form
    497,607,624.50/686,613,491.25 = 288,715,882.10/x
  3. Step 3: Cross multiply
    497,607,624.50x = 686,613,491.25 × 288,715,882.10
  4. Step 4: Simplify right side
    497,607,624.50x = 198,236,219,788,004,384
  5. Step 5: Solve for x
    x = 198,236,219,788,004,384/497,607,624.50
  6. Step 6: Final answer
    x = 398,378,581.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.