Home / 86,249,736.90-129,310,793.55-40,758,387.30

Finding the Fourth Proportional to 86,249,736.90, 129,310,793.55 and 40,758,387.30

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Solution

The fourth proportional to 86,249,736.90, 129,310,793.55 and 40,758,387.30 is: 61,107,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,736.90 : 129,310,793.55 = 40,758,387.30 : x
  2. Step 2: Convert to fraction form
    86,249,736.90/129,310,793.55 = 40,758,387.30/x
  3. Step 3: Cross multiply
    86,249,736.90x = 129,310,793.55 × 40,758,387.30
  4. Step 4: Simplify right side
    86,249,736.90x = 5,270,499,405,581,241
  5. Step 5: Solve for x
    x = 5,270,499,405,581,241/86,249,736.90
  6. Step 6: Final answer
    x = 61,107,425.89

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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.