Home / 40,931,998.20-61,397,997.30-19,408,637.70

Finding the Fourth Proportional to 40,931,998.20, 61,397,997.30 and 19,408,637.70

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Solution

The fourth proportional to 40,931,998.20, 61,397,997.30 and 19,408,637.70 is: 29,112,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931,998.20 : 61,397,997.30 = 19,408,637.70 : x
  2. Step 2: Convert to fraction form
    40,931,998.20/61,397,997.30 = 19,408,637.70/x
  3. Step 3: Cross multiply
    40,931,998.20x = 61,397,997.30 × 19,408,637.70
  4. Step 4: Simplify right side
    40,931,998.20x = 1,191,651,485,101,278
  5. Step 5: Solve for x
    x = 1,191,651,485,101,278/40,931,998.20
  6. Step 6: Final answer
    x = 29,112,956.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.