Home / 87,018,352.20-130,622,006.70-54,706,739.40

Finding the Fourth Proportional to 87,018,352.20, 130,622,006.70 and 54,706,739.40

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Solution

The fourth proportional to 87,018,352.20, 130,622,006.70 and 54,706,739.40 is: 82,119,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018,352.20 : 130,622,006.70 = 54,706,739.40 : x
  2. Step 2: Convert to fraction form
    87,018,352.20/130,622,006.70 = 54,706,739.40/x
  3. Step 3: Cross multiply
    87,018,352.20x = 130,622,006.70 × 54,706,739.40
  4. Step 4: Simplify right side
    87,018,352.20x = 7,145,904,080,441,954
  5. Step 5: Solve for x
    x = 7,145,904,080,441,954/87,018,352.20
  6. Step 6: Final answer
    x = 82,119,505.83

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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.