Home / 226,712,781.72-312,785,342.16-137,433,351.12

Finding the Fourth Proportional to 226,712,781.72, 312,785,342.16 and 137,433,351.12

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Solution

The fourth proportional to 226,712,781.72, 312,785,342.16 and 137,433,351.12 is: 189,610,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,712,781.72 : 312,785,342.16 = 137,433,351.12 : x
  2. Step 2: Convert to fraction form
    226,712,781.72/312,785,342.16 = 137,433,351.12/x
  3. Step 3: Cross multiply
    226,712,781.72x = 312,785,342.16 × 137,433,351.12
  4. Step 4: Simplify right side
    226,712,781.72x = 42,987,137,754,264,624
  5. Step 5: Solve for x
    x = 42,987,137,754,264,624/226,712,781.72
  6. Step 6: Final answer
    x = 189,610,561.12

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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.