Home / 151,869,937.20-209,597,547.36-85,794,691.76

Finding the Fourth Proportional to 151,869,937.20, 209,597,547.36 and 85,794,691.76

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Solution

The fourth proportional to 151,869,937.20, 209,597,547.36 and 85,794,691.76 is: 118,406,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,869,937.20 : 209,597,547.36 = 85,794,691.76 : x
  2. Step 2: Convert to fraction form
    151,869,937.20/209,597,547.36 = 85,794,691.76/x
  3. Step 3: Cross multiply
    151,869,937.20x = 209,597,547.36 × 85,794,691.76
  4. Step 4: Simplify right side
    151,869,937.20x = 17,982,356,969,403,204
  5. Step 5: Solve for x
    x = 17,982,356,969,403,204/151,869,937.20
  6. Step 6: Final answer
    x = 118,406,297.53

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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.