Home / 54,128,462.80-81,192,694.20-42,649,337.20

Finding the Fourth Proportional to 54,128,462.80, 81,192,694.20 and 42,649,337.20

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Solution

The fourth proportional to 54,128,462.80, 81,192,694.20 and 42,649,337.20 is: 63,974,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,462.80 : 81,192,694.20 = 42,649,337.20 : x
  2. Step 2: Convert to fraction form
    54,128,462.80/81,192,694.20 = 42,649,337.20/x
  3. Step 3: Cross multiply
    54,128,462.80x = 81,192,694.20 × 42,649,337.20
  4. Step 4: Simplify right side
    54,128,462.80x = 3,462,814,593,112,284.50
  5. Step 5: Solve for x
    x = 3,462,814,593,112,284.50/54,128,462.80
  6. Step 6: Final answer
    x = 63,974,005.80

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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.