Home / 28,001,998.40-42,002,997.60-26,301,387.20

Finding the Fourth Proportional to 28,001,998.40, 42,002,997.60 and 26,301,387.20

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Solution

The fourth proportional to 28,001,998.40, 42,002,997.60 and 26,301,387.20 is: 39,452,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001,998.40 : 42,002,997.60 = 26,301,387.20 : x
  2. Step 2: Convert to fraction form
    28,001,998.40/42,002,997.60 = 26,301,387.20/x
  3. Step 3: Cross multiply
    28,001,998.40x = 42,002,997.60 × 26,301,387.20
  4. Step 4: Simplify right side
    28,001,998.40x = 1,104,737,103,438,270.75
  5. Step 5: Solve for x
    x = 1,104,737,103,438,270.75/28,001,998.40
  6. Step 6: Final answer
    x = 39,452,080.80

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1.5x scale

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.