Home / 65,707,958.96-90,689,113.85-42,215,862.68

Finding the Fourth Proportional to 65,707,958.96, 90,689,113.85 and 42,215,862.68

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Solution

The fourth proportional to 65,707,958.96, 90,689,113.85 and 42,215,862.68 is: 58,265,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707,958.96 : 90,689,113.85 = 42,215,862.68 : x
  2. Step 2: Convert to fraction form
    65,707,958.96/90,689,113.85 = 42,215,862.68/x
  3. Step 3: Cross multiply
    65,707,958.96x = 90,689,113.85 × 42,215,862.68
  4. Step 4: Simplify right side
    65,707,958.96x = 3,828,519,176,862,486
  5. Step 5: Solve for x
    x = 3,828,519,176,862,486/65,707,958.96
  6. Step 6: Final answer
    x = 58,265,684.06

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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.