Home / 7,172,573.76-9,898,159.50-3,909,391.29

Finding the Fourth Proportional to 7,172,573.76, 9,898,159.50 and 3,909,391.29

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Solution

The fourth proportional to 7,172,573.76, 9,898,159.50 and 3,909,391.29 is: 5,394,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,573.76 : 9,898,159.50 = 3,909,391.29 : x
  2. Step 2: Convert to fraction form
    7,172,573.76/9,898,159.50 = 3,909,391.29/x
  3. Step 3: Cross multiply
    7,172,573.76x = 9,898,159.50 × 3,909,391.29
  4. Step 4: Simplify right side
    7,172,573.76x = 38,695,778,536,330.76
  5. Step 5: Solve for x
    x = 38,695,778,536,330.76/7,172,573.76
  6. Step 6: Final answer
    x = 5,394,964.18

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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.