Home / 100,930,091.38-139,283,419.15-54,520,337.86

Finding the Fourth Proportional to 100,930,091.38, 139,283,419.15 and 54,520,337.86

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Solution

The fourth proportional to 100,930,091.38, 139,283,419.15 and 54,520,337.86 is: 75,238,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,930,091.38 : 139,283,419.15 = 54,520,337.86 : x
  2. Step 2: Convert to fraction form
    100,930,091.38/139,283,419.15 = 54,520,337.86/x
  3. Step 3: Cross multiply
    100,930,091.38x = 139,283,419.15 × 54,520,337.86
  4. Step 4: Simplify right side
    100,930,091.38x = 7,593,779,070,353,994
  5. Step 5: Solve for x
    x = 7,593,779,070,353,994/100,930,091.38
  6. Step 6: Final answer
    x = 75,238,008.47

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1.5x scale

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.