Home / 281,418,889.14-388,358,104.50-155,979,174.89

Finding the Fourth Proportional to 281,418,889.14, 388,358,104.50 and 155,979,174.89

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Solution

The fourth proportional to 281,418,889.14, 388,358,104.50 and 155,979,174.89 is: 215,251,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,418,889.14 : 388,358,104.50 = 155,979,174.89 : x
  2. Step 2: Convert to fraction form
    281,418,889.14/388,358,104.50 = 155,979,174.89/x
  3. Step 3: Cross multiply
    281,418,889.14x = 388,358,104.50 × 155,979,174.89
  4. Step 4: Simplify right side
    281,418,889.14x = 60,575,776,702,725,296
  5. Step 5: Solve for x
    x = 60,575,776,702,725,296/281,418,889.14
  6. Step 6: Final answer
    x = 215,251,282.13

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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.