Home / 21,781,261.60-32,671,892.40-18,795,277.60

Finding the Fourth Proportional to 21,781,261.60, 32,671,892.40 and 18,795,277.60

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Solution

The fourth proportional to 21,781,261.60, 32,671,892.40 and 18,795,277.60 is: 28,192,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781,261.60 : 32,671,892.40 = 18,795,277.60 : x
  2. Step 2: Convert to fraction form
    21,781,261.60/32,671,892.40 = 18,795,277.60/x
  3. Step 3: Cross multiply
    21,781,261.60x = 32,671,892.40 × 18,795,277.60
  4. Step 4: Simplify right side
    21,781,261.60x = 614,077,287,375,330.25
  5. Step 5: Solve for x
    x = 614,077,287,375,330.25/21,781,261.60
  6. Step 6: Final answer
    x = 28,192,916.40

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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.