Home / 87,019,622.60-130,529,433.90-81,644,851.40

Finding the Fourth Proportional to 87,019,622.60, 130,529,433.90 and 81,644,851.40

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Solution

The fourth proportional to 87,019,622.60, 130,529,433.90 and 81,644,851.40 is: 122,467,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019,622.60 : 130,529,433.90 = 81,644,851.40 : x
  2. Step 2: Convert to fraction form
    87,019,622.60/130,529,433.90 = 81,644,851.40/x
  3. Step 3: Cross multiply
    87,019,622.60x = 130,529,433.90 × 81,644,851.40
  4. Step 4: Simplify right side
    87,019,622.60x = 10,657,056,234,091,624
  5. Step 5: Solve for x
    x = 10,657,056,234,091,624/87,019,622.60
  6. Step 6: Final answer
    x = 122,467,277.10

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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.