Home / 86,220,240.18-129,329,142.15-40,136,333.87

Finding the Fourth Proportional to 86,220,240.18, 129,329,142.15 and 40,136,333.87

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Solution

The fourth proportional to 86,220,240.18, 129,329,142.15 and 40,136,333.87 is: 60,203,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,220,240.18 : 129,329,142.15 = 40,136,333.87 : x
  2. Step 2: Convert to fraction form
    86,220,240.18/129,329,142.15 = 40,136,333.87/x
  3. Step 3: Cross multiply
    86,220,240.18x = 129,329,142.15 × 40,136,333.87
  4. Step 4: Simplify right side
    86,220,240.18x = 5,190,797,628,450,338
  5. Step 5: Solve for x
    x = 5,190,797,628,450,338/86,220,240.18
  6. Step 6: Final answer
    x = 60,203,933.76

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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.