Home / 21,781,317.60-32,671,976.40-18,795,333.60

Finding the Fourth Proportional to 21,781,317.60, 32,671,976.40 and 18,795,333.60

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Solution

The fourth proportional to 21,781,317.60, 32,671,976.40 and 18,795,333.60 is: 28,193,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781,317.60 : 32,671,976.40 = 18,795,333.60 : x
  2. Step 2: Convert to fraction form
    21,781,317.60/32,671,976.40 = 18,795,333.60/x
  3. Step 3: Cross multiply
    21,781,317.60x = 32,671,976.40 × 18,795,333.60
  4. Step 4: Simplify right side
    21,781,317.60x = 614,080,695,809,327
  5. Step 5: Solve for x
    x = 614,080,695,809,327/21,781,317.60
  6. Step 6: Final answer
    x = 28,193,000.40

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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.