Home / 187,123,698.68-280,138,214.78-109,162,222.52

Finding the Fourth Proportional to 187,123,698.68, 280,138,214.78 and 109,162,222.52

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Solution

The fourth proportional to 187,123,698.68, 280,138,214.78 and 109,162,222.52 is: 163,424,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,123,698.68 : 280,138,214.78 = 109,162,222.52 : x
  2. Step 2: Convert to fraction form
    187,123,698.68/280,138,214.78 = 109,162,222.52/x
  3. Step 3: Cross multiply
    187,123,698.68x = 280,138,214.78 × 109,162,222.52
  4. Step 4: Simplify right side
    187,123,698.68x = 30,580,510,138,169,908
  5. Step 5: Solve for x
    x = 30,580,510,138,169,908/187,123,698.68
  6. Step 6: Final answer
    x = 163,424,036.37

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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.