Home / 90,720,216.90-136,068,078.15-36,172,937.70

Finding the Fourth Proportional to 90,720,216.90, 136,068,078.15 and 36,172,937.70

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Solution

The fourth proportional to 90,720,216.90, 136,068,078.15 and 36,172,937.70 is: 54,254,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,216.90 : 136,068,078.15 = 36,172,937.70 : x
  2. Step 2: Convert to fraction form
    90,720,216.90/136,068,078.15 = 36,172,937.70/x
  3. Step 3: Cross multiply
    90,720,216.90x = 136,068,078.15 × 36,172,937.70
  4. Step 4: Simplify right side
    90,720,216.90x = 4,921,982,113,878,682
  5. Step 5: Solve for x
    x = 4,921,982,113,878,682/90,720,216.90
  6. Step 6: Final answer
    x = 54,254,523.22

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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.