Home / 21,872,214.40-32,808,321.60-20,612,502.40

Finding the Fourth Proportional to 21,872,214.40, 32,808,321.60 and 20,612,502.40

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Solution

The fourth proportional to 21,872,214.40, 32,808,321.60 and 20,612,502.40 is: 30,918,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,214.40 : 32,808,321.60 = 20,612,502.40 : x
  2. Step 2: Convert to fraction form
    21,872,214.40/32,808,321.60 = 20,612,502.40/x
  3. Step 3: Cross multiply
    21,872,214.40x = 32,808,321.60 × 20,612,502.40
  4. Step 4: Simplify right side
    21,872,214.40x = 676,261,607,719,971.88
  5. Step 5: Solve for x
    x = 676,261,607,719,971.88/21,872,214.40
  6. Step 6: Final answer
    x = 30,918,753.60

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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.