Home / 21,862,869.60-32,719,654.80-20,071,279.20

Finding the Fourth Proportional to 21,862,869.60, 32,719,654.80 and 20,071,279.20

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Solution

The fourth proportional to 21,862,869.60, 32,719,654.80 and 20,071,279.20 is: 30,038,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862,869.60 : 32,719,654.80 = 20,071,279.20 : x
  2. Step 2: Convert to fraction form
    21,862,869.60/32,719,654.80 = 20,071,279.20/x
  3. Step 3: Cross multiply
    21,862,869.60x = 32,719,654.80 × 20,071,279.20
  4. Step 4: Simplify right side
    21,862,869.60x = 656,725,326,818,420.12
  5. Step 5: Solve for x
    x = 656,725,326,818,420.12/21,862,869.60
  6. Step 6: Final answer
    x = 30,038,386.49

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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.