Home / 90,968,789.87-136,414,343.68-52,656,748.91

Finding the Fourth Proportional to 90,968,789.87, 136,414,343.68 and 52,656,748.91

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Solution

The fourth proportional to 90,968,789.87, 136,414,343.68 and 52,656,748.91 is: 78,962,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968,789.87 : 136,414,343.68 = 52,656,748.91 : x
  2. Step 2: Convert to fraction form
    90,968,789.87/136,414,343.68 = 52,656,748.91/x
  3. Step 3: Cross multiply
    90,968,789.87x = 136,414,343.68 × 52,656,748.91
  4. Step 4: Simplify right side
    90,968,789.87x = 7,183,135,842,066,492
  5. Step 5: Solve for x
    x = 7,183,135,842,066,492/90,968,789.87
  6. Step 6: Final answer
    x = 78,962,640.40

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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.