Home / 372,078,506.88-558,117,760.14-138,927,426.75

Finding the Fourth Proportional to 372,078,506.88, 558,117,760.14 and 138,927,426.75

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Solution

The fourth proportional to 372,078,506.88, 558,117,760.14 and 138,927,426.75 is: 208,391,140.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,078,506.88 : 558,117,760.14 = 138,927,426.75 : x
  2. Step 2: Convert to fraction form
    372,078,506.88/558,117,760.14 = 138,927,426.75/x
  3. Step 3: Cross multiply
    372,078,506.88x = 558,117,760.14 × 138,927,426.75
  4. Step 4: Simplify right side
    372,078,506.88x = 77,537,864,239,723,920
  5. Step 5: Solve for x
    x = 77,537,864,239,723,920/372,078,506.88
  6. Step 6: Final answer
    x = 208,391,140.06

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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.