Home / 282,958,272.38-390,479,660.06-157,508,479.10

Finding the Fourth Proportional to 282,958,272.38, 390,479,660.06 and 157,508,479.10

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Solution

The fourth proportional to 282,958,272.38, 390,479,660.06 and 157,508,479.10 is: 217,360,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,958,272.38 : 390,479,660.06 = 157,508,479.10 : x
  2. Step 2: Convert to fraction form
    282,958,272.38/390,479,660.06 = 157,508,479.10/x
  3. Step 3: Cross multiply
    282,958,272.38x = 390,479,660.06 × 157,508,479.10
  4. Step 4: Simplify right side
    282,958,272.38x = 61,503,857,375,535,616
  5. Step 5: Solve for x
    x = 61,503,857,375,535,616/282,958,272.38
  6. Step 6: Final answer
    x = 217,360,167.13

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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.