Home / 82,157,609.12-113,381,043.48-45,488,180

Finding the Fourth Proportional to 82,157,609.12, 113,381,043.48 and 45,488,180

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Solution

The fourth proportional to 82,157,609.12, 113,381,043.48 and 45,488,180 is: 62,775,649.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,157,609.12 : 113,381,043.48 = 45,488,180 : x
  2. Step 2: Convert to fraction form
    82,157,609.12/113,381,043.48 = 45,488,180/x
  3. Step 3: Cross multiply
    82,157,609.12x = 113,381,043.48 × 45,488,180
  4. Step 4: Simplify right side
    82,157,609.12x = 5,157,497,314,406,067
  5. Step 5: Solve for x
    x = 5,157,497,314,406,067/82,157,609.12
  6. Step 6: Final answer
    x = 62,775,649.99

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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.