Home / 21,720,211.60-32,598,688.20-8,949,881.20

Finding the Fourth Proportional to 21,720,211.60, 32,598,688.20 and 8,949,881.20

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Solution

The fourth proportional to 21,720,211.60, 32,598,688.20 and 8,949,881.20 is: 13,432,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,211.60 : 32,598,688.20 = 8,949,881.20 : x
  2. Step 2: Convert to fraction form
    21,720,211.60/32,598,688.20 = 8,949,881.20/x
  3. Step 3: Cross multiply
    21,720,211.60x = 32,598,688.20 × 8,949,881.20
  4. Step 4: Simplify right side
    21,720,211.60x = 291,754,386,665,841.81
  5. Step 5: Solve for x
    x = 291,754,386,665,841.81/21,720,211.60
  6. Step 6: Final answer
    x = 13,432,391.55

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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.