Home / 87,018,363.70-130,622,023.95-54,706,750.90

Finding the Fourth Proportional to 87,018,363.70, 130,622,023.95 and 54,706,750.90

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Solution

The fourth proportional to 87,018,363.70, 130,622,023.95 and 54,706,750.90 is: 82,119,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018,363.70 : 130,622,023.95 = 54,706,750.90 : x
  2. Step 2: Convert to fraction form
    87,018,363.70/130,622,023.95 = 54,706,750.90/x
  3. Step 3: Cross multiply
    87,018,363.70x = 130,622,023.95 × 54,706,750.90
  4. Step 4: Simplify right side
    87,018,363.70x = 7,145,906,526,286,484
  5. Step 5: Solve for x
    x = 7,145,906,526,286,484/87,018,363.70
  6. Step 6: Final answer
    x = 82,119,523.08

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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.