Home / 65,778,691.32-90,753,725.69-38,271,305.16

Finding the Fourth Proportional to 65,778,691.32, 90,753,725.69 and 38,271,305.16

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Solution

The fourth proportional to 65,778,691.32, 90,753,725.69 and 38,271,305.16 is: 52,802,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778,691.32 : 90,753,725.69 = 38,271,305.16 : x
  2. Step 2: Convert to fraction form
    65,778,691.32/90,753,725.69 = 38,271,305.16/x
  3. Step 3: Cross multiply
    65,778,691.32x = 90,753,725.69 × 38,271,305.16
  4. Step 4: Simplify right side
    65,778,691.32x = 3,473,263,530,288,921
  5. Step 5: Solve for x
    x = 3,473,263,530,288,921/65,778,691.32
  6. Step 6: Final answer
    x = 52,802,259.52

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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.