Home / 7,129,353.17-9,838,509.68-3,866,166.92

Finding the Fourth Proportional to 7,129,353.17, 9,838,509.68 and 3,866,166.92

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Solution

The fourth proportional to 7,129,353.17, 9,838,509.68 and 3,866,166.92 is: 5,335,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,353.17 : 9,838,509.68 = 3,866,166.92 : x
  2. Step 2: Convert to fraction form
    7,129,353.17/9,838,509.68 = 3,866,166.92/x
  3. Step 3: Cross multiply
    7,129,353.17x = 9,838,509.68 × 3,866,166.92
  4. Step 4: Simplify right side
    7,129,353.17x = 38,037,320,701,177.47
  5. Step 5: Solve for x
    x = 38,037,320,701,177.47/7,129,353.17
  6. Step 6: Final answer
    x = 5,335,311.60

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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.