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Finding the Fourth Proportional to 71,065,891.47, 106,598,825.03 and 38,744,974.20

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Solution

The fourth proportional to 71,065,891.47, 106,598,825.03 and 38,744,974.20 is: 58,117,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,065,891.47 : 106,598,825.03 = 38,744,974.20 : x
  2. Step 2: Convert to fraction form
    71,065,891.47/106,598,825.03 = 38,744,974.20/x
  3. Step 3: Cross multiply
    71,065,891.47x = 106,598,825.03 × 38,744,974.20
  4. Step 4: Simplify right side
    71,065,891.47x = 4,130,168,725,537,664.50
  5. Step 5: Solve for x
    x = 4,130,168,725,537,664.50/71,065,891.47
  6. Step 6: Final answer
    x = 58,117,454.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.