Home / 253,205,595.78-379,804,248.09-80,680,076.70

Finding the Fourth Proportional to 253,205,595.78, 379,804,248.09 and 80,680,076.70

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Solution

The fourth proportional to 253,205,595.78, 379,804,248.09 and 80,680,076.70 is: 121,018,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,205,595.78 : 379,804,248.09 = 80,680,076.70 : x
  2. Step 2: Convert to fraction form
    253,205,595.78/379,804,248.09 = 80,680,076.70/x
  3. Step 3: Cross multiply
    253,205,595.78x = 379,804,248.09 × 80,680,076.70
  4. Step 4: Simplify right side
    253,205,595.78x = 30,642,635,866,887,028
  5. Step 5: Solve for x
    x = 30,642,635,866,887,028/253,205,595.78
  6. Step 6: Final answer
    x = 121,018,794.12

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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.