Home / 54,128,400.30-81,192,600.45-42,649,274.70

Finding the Fourth Proportional to 54,128,400.30, 81,192,600.45 and 42,649,274.70

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Solution

The fourth proportional to 54,128,400.30, 81,192,600.45 and 42,649,274.70 is: 63,973,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,400.30 : 81,192,600.45 = 42,649,274.70 : x
  2. Step 2: Convert to fraction form
    54,128,400.30/81,192,600.45 = 42,649,274.70/x
  3. Step 3: Cross multiply
    54,128,400.30x = 81,192,600.45 × 42,649,274.70
  4. Step 4: Simplify right side
    54,128,400.30x = 3,462,805,520,199,394
  5. Step 5: Solve for x
    x = 3,462,805,520,199,394/54,128,400.30
  6. Step 6: Final answer
    x = 63,973,912.05

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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.