Home / 208,581,650.88-287,829,269.28-115,762,221.60

Finding the Fourth Proportional to 208,581,650.88, 287,829,269.28 and 115,762,221.60

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Solution

The fourth proportional to 208,581,650.88, 287,829,269.28 and 115,762,221.60 is: 159,744,423.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,581,650.88 : 287,829,269.28 = 115,762,221.60 : x
  2. Step 2: Convert to fraction form
    208,581,650.88/287,829,269.28 = 115,762,221.60/x
  3. Step 3: Cross multiply
    208,581,650.88x = 287,829,269.28 × 115,762,221.60
  4. Step 4: Simplify right side
    208,581,650.88x = 33,319,755,653,357,428
  5. Step 5: Solve for x
    x = 33,319,755,653,357,428/208,581,650.88
  6. Step 6: Final answer
    x = 159,744,423.89

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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.