Home / 65,785,257.60-90,753,247.44-42,587,894.40

Finding the Fourth Proportional to 65,785,257.60, 90,753,247.44 and 42,587,894.40

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Solution

The fourth proportional to 65,785,257.60, 90,753,247.44 and 42,587,894.40 is: 58,751,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,785,257.60 : 90,753,247.44 = 42,587,894.40 : x
  2. Step 2: Convert to fraction form
    65,785,257.60/90,753,247.44 = 42,587,894.40/x
  3. Step 3: Cross multiply
    65,785,257.60x = 90,753,247.44 × 42,587,894.40
  4. Step 4: Simplify right side
    65,785,257.60x = 3,864,989,718,431,790
  5. Step 5: Solve for x
    x = 3,864,989,718,431,790/65,785,257.60
  6. Step 6: Final answer
    x = 58,751,608.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.