Home / 21,781,552.80-32,672,329.20-20,139,261.60

Finding the Fourth Proportional to 21,781,552.80, 32,672,329.20 and 20,139,261.60

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Solution

The fourth proportional to 21,781,552.80, 32,672,329.20 and 20,139,261.60 is: 30,208,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781,552.80 : 32,672,329.20 = 20,139,261.60 : x
  2. Step 2: Convert to fraction form
    21,781,552.80/32,672,329.20 = 20,139,261.60/x
  3. Step 3: Cross multiply
    21,781,552.80x = 32,672,329.20 × 20,139,261.60
  4. Step 4: Simplify right side
    21,781,552.80x = 657,996,584,840,118.75
  5. Step 5: Solve for x
    x = 657,996,584,840,118.75/21,781,552.80
  6. Step 6: Final answer
    x = 30,208,892.40

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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.