Home / 762,891,916.24-1,144,508,457.12-278,217,724.24

Finding the Fourth Proportional to 762,891,916.24, 1,144,508,457.12 and 278,217,724.24

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Solution

The fourth proportional to 762,891,916.24, 1,144,508,457.12 and 278,217,724.24 is: 417,388,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,891,916.24 : 1,144,508,457.12 = 278,217,724.24 : x
  2. Step 2: Convert to fraction form
    762,891,916.24/1,144,508,457.12 = 278,217,724.24/x
  3. Step 3: Cross multiply
    762,891,916.24x = 1,144,508,457.12 × 278,217,724.24
  4. Step 4: Simplify right side
    762,891,916.24x = 318,422,538,313,360,000
  5. Step 5: Solve for x
    x = 318,422,538,313,360,000/762,891,916.24
  6. Step 6: Final answer
    x = 417,388,795.89

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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.