Home / 137,580,514.88-189,798,549.34-81,794,281.38

Finding the Fourth Proportional to 137,580,514.88, 189,798,549.34 and 81,794,281.38

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Solution

The fourth proportional to 137,580,514.88, 189,798,549.34 and 81,794,281.38 is: 112,838,914.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,580,514.88 : 189,798,549.34 = 81,794,281.38 : x
  2. Step 2: Convert to fraction form
    137,580,514.88/189,798,549.34 = 81,794,281.38/x
  3. Step 3: Cross multiply
    137,580,514.88x = 189,798,549.34 × 81,794,281.38
  4. Step 4: Simplify right side
    137,580,514.88x = 15,524,435,950,499,290
  5. Step 5: Solve for x
    x = 15,524,435,950,499,290/137,580,514.88
  6. Step 6: Final answer
    x = 112,838,914.47

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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.