Home / 86,339,593.80-129,341,429.10-52,159,408.20

Finding the Fourth Proportional to 86,339,593.80, 129,341,429.10 and 52,159,408.20

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Solution

The fourth proportional to 86,339,593.80, 129,341,429.10 and 52,159,408.20 is: 78,137,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,339,593.80 : 129,341,429.10 = 52,159,408.20 : x
  2. Step 2: Convert to fraction form
    86,339,593.80/129,341,429.10 = 52,159,408.20/x
  3. Step 3: Cross multiply
    86,339,593.80x = 129,341,429.10 × 52,159,408.20
  4. Step 4: Simplify right side
    86,339,593.80x = 6,746,372,397,598,259
  5. Step 5: Solve for x
    x = 6,746,372,397,598,259/86,339,593.80
  6. Step 6: Final answer
    x = 78,137,643.47

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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.