Home / 231,709,198.69-319,842,600.55-153,417,974.87

Finding the Fourth Proportional to 231,709,198.69, 319,842,600.55 and 153,417,974.87

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Solution

The fourth proportional to 231,709,198.69, 319,842,600.55 and 153,417,974.87 is: 211,772,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,709,198.69 : 319,842,600.55 = 153,417,974.87 : x
  2. Step 2: Convert to fraction form
    231,709,198.69/319,842,600.55 = 153,417,974.87/x
  3. Step 3: Cross multiply
    231,709,198.69x = 319,842,600.55 × 153,417,974.87
  4. Step 4: Simplify right side
    231,709,198.69x = 49,069,604,053,951,416
  5. Step 5: Solve for x
    x = 49,069,604,053,951,416/231,709,198.69
  6. Step 6: Final answer
    x = 211,772,360.92

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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.