Home / 21,129,000.60-31,693,500.90-20,845,565.40

Finding the Fourth Proportional to 21,129,000.60, 31,693,500.90 and 20,845,565.40

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Solution

The fourth proportional to 21,129,000.60, 31,693,500.90 and 20,845,565.40 is: 31,268,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,129,000.60 : 31,693,500.90 = 20,845,565.40 : x
  2. Step 2: Convert to fraction form
    21,129,000.60/31,693,500.90 = 20,845,565.40/x
  3. Step 3: Cross multiply
    21,129,000.60x = 31,693,500.90 × 20,845,565.40
  4. Step 4: Simplify right side
    21,129,000.60x = 660,668,945,765,908.75
  5. Step 5: Solve for x
    x = 660,668,945,765,908.75/21,129,000.60
  6. Step 6: Final answer
    x = 31,268,348.10

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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.