Home / 7,129,346.90-9,838,500.96-3,866,160.65

Finding the Fourth Proportional to 7,129,346.90, 9,838,500.96 and 3,866,160.65

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Solution

The fourth proportional to 7,129,346.90, 9,838,500.96 and 3,866,160.65 is: 5,335,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,346.90 : 9,838,500.96 = 3,866,160.65 : x
  2. Step 2: Convert to fraction form
    7,129,346.90/9,838,500.96 = 3,866,160.65/x
  3. Step 3: Cross multiply
    7,129,346.90x = 9,838,500.96 × 3,866,160.65
  4. Step 4: Simplify right side
    7,129,346.90x = 38,037,225,217,346.73
  5. Step 5: Solve for x
    x = 38,037,225,217,346.73/7,129,346.90
  6. Step 6: Final answer
    x = 5,335,302.91

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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.