Home / 271,428,979.33-406,957,598.17-138,223,989.19

Finding the Fourth Proportional to 271,428,979.33, 406,957,598.17 and 138,223,989.19

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Solution

The fourth proportional to 271,428,979.33, 406,957,598.17 and 138,223,989.19 is: 207,241,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,428,979.33 : 406,957,598.17 = 138,223,989.19 : x
  2. Step 2: Convert to fraction form
    271,428,979.33/406,957,598.17 = 138,223,989.19/x
  3. Step 3: Cross multiply
    271,428,979.33x = 406,957,598.17 × 138,223,989.19
  4. Step 4: Simplify right side
    271,428,979.33x = 56,251,302,648,779,608
  5. Step 5: Solve for x
    x = 56,251,302,648,779,608/271,428,979.33
  6. Step 6: Final answer
    x = 207,241,329.90

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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.