Home / 91,041,412.32-136,578,959.10-28,808,395.20

Finding the Fourth Proportional to 91,041,412.32, 136,578,959.10 and 28,808,395.20

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Solution

The fourth proportional to 91,041,412.32, 136,578,959.10 and 28,808,395.20 is: 43,217,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,041,412.32 : 136,578,959.10 = 28,808,395.20 : x
  2. Step 2: Convert to fraction form
    91,041,412.32/136,578,959.10 = 28,808,395.20/x
  3. Step 3: Cross multiply
    91,041,412.32x = 136,578,959.10 × 28,808,395.20
  4. Step 4: Simplify right side
    91,041,412.32x = 3,934,620,629,757,436
  5. Step 5: Solve for x
    x = 3,934,620,629,757,436/91,041,412.32
  6. Step 6: Final answer
    x = 43,217,921.71

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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.