Home / 90,131,510.88-135,178,349.04-25,420,182.32

Finding the Fourth Proportional to 90,131,510.88, 135,178,349.04 and 25,420,182.32

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Solution

The fourth proportional to 90,131,510.88, 135,178,349.04 and 25,420,182.32 is: 38,124,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,131,510.88 : 135,178,349.04 = 25,420,182.32 : x
  2. Step 2: Convert to fraction form
    90,131,510.88/135,178,349.04 = 25,420,182.32/x
  3. Step 3: Cross multiply
    90,131,510.88x = 135,178,349.04 × 25,420,182.32
  4. Step 4: Simplify right side
    90,131,510.88x = 3,436,258,278,313,397
  5. Step 5: Solve for x
    x = 3,436,258,278,313,397/90,131,510.88
  6. Step 6: Final answer
    x = 38,124,938.16

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1.5x scale

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.