Home / 218,791,937.10-328,237,672.05-127,868,724.30

Finding the Fourth Proportional to 218,791,937.10, 328,237,672.05 and 127,868,724.30

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Solution

The fourth proportional to 218,791,937.10, 328,237,672.05 and 127,868,724.30 is: 191,832,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,791,937.10 : 328,237,672.05 = 127,868,724.30 : x
  2. Step 2: Convert to fraction form
    218,791,937.10/328,237,672.05 = 127,868,724.30/x
  3. Step 3: Cross multiply
    218,791,937.10x = 328,237,672.05 × 127,868,724.30
  4. Step 4: Simplify right side
    218,791,937.10x = 41,971,332,392,235,264
  5. Step 5: Solve for x
    x = 41,971,332,392,235,264/218,791,937.10
  6. Step 6: Final answer
    x = 191,832,171.46

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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.