Home / 289,491,307.04-399,501,089.23-157,332,310.49

Finding the Fourth Proportional to 289,491,307.04, 399,501,089.23 and 157,332,310.49

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Solution

The fourth proportional to 289,491,307.04, 399,501,089.23 and 157,332,310.49 is: 217,120,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,491,307.04 : 399,501,089.23 = 157,332,310.49 : x
  2. Step 2: Convert to fraction form
    289,491,307.04/399,501,089.23 = 157,332,310.49/x
  3. Step 3: Cross multiply
    289,491,307.04x = 399,501,089.23 × 157,332,310.49
  4. Step 4: Simplify right side
    289,491,307.04x = 62,854,429,411,827,560
  5. Step 5: Solve for x
    x = 62,854,429,411,827,560/289,491,307.04
  6. Step 6: Final answer
    x = 217,120,265.39

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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.