Home / 86,715,487.86-130,144,788.78-43,596,945.78

Finding the Fourth Proportional to 86,715,487.86, 130,144,788.78 and 43,596,945.78

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Solution

The fourth proportional to 86,715,487.86, 130,144,788.78 and 43,596,945.78 is: 65,431,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,715,487.86 : 130,144,788.78 = 43,596,945.78 : x
  2. Step 2: Convert to fraction form
    86,715,487.86/130,144,788.78 = 43,596,945.78/x
  3. Step 3: Cross multiply
    86,715,487.86x = 130,144,788.78 × 43,596,945.78
  4. Step 4: Simplify right side
    86,715,487.86x = 5,673,915,299,991,213
  5. Step 5: Solve for x
    x = 5,673,915,299,991,213/86,715,487.86
  6. Step 6: Final answer
    x = 65,431,394.55

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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.