Home / 65,785,259.60-90,753,250.20-42,587,896.40

Finding the Fourth Proportional to 65,785,259.60, 90,753,250.20 and 42,587,896.40

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Solution

The fourth proportional to 65,785,259.60, 90,753,250.20 and 42,587,896.40 is: 58,751,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,785,259.60 : 90,753,250.20 = 42,587,896.40 : x
  2. Step 2: Convert to fraction form
    65,785,259.60/90,753,250.20 = 42,587,896.40/x
  3. Step 3: Cross multiply
    65,785,259.60x = 90,753,250.20 × 42,587,896.40
  4. Step 4: Simplify right side
    65,785,259.60x = 3,864,990,017,480,879.50
  5. Step 5: Solve for x
    x = 3,864,990,017,480,879.50/65,785,259.60
  6. Step 6: Final answer
    x = 58,751,611.55

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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.