Home / 87,120,200.70-130,680,301.05-56,663,163.90

Finding the Fourth Proportional to 87,120,200.70, 130,680,301.05 and 56,663,163.90

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Solution

The fourth proportional to 87,120,200.70, 130,680,301.05 and 56,663,163.90 is: 84,994,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,200.70 : 130,680,301.05 = 56,663,163.90 : x
  2. Step 2: Convert to fraction form
    87,120,200.70/130,680,301.05 = 56,663,163.90/x
  3. Step 3: Cross multiply
    87,120,200.70x = 130,680,301.05 × 56,663,163.90
  4. Step 4: Simplify right side
    87,120,200.70x = 7,404,759,316,897,492
  5. Step 5: Solve for x
    x = 7,404,759,316,897,492/87,120,200.70
  6. Step 6: Final answer
    x = 84,994,745.85

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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.