Home / 86,029,576.80-129,193,664.40-45,718,792.80

Finding the Fourth Proportional to 86,029,576.80, 129,193,664.40 and 45,718,792.80

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Solution

The fourth proportional to 86,029,576.80, 129,193,664.40 and 45,718,792.80 is: 68,657,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,029,576.80 : 129,193,664.40 = 45,718,792.80 : x
  2. Step 2: Convert to fraction form
    86,029,576.80/129,193,664.40 = 45,718,792.80/x
  3. Step 3: Cross multiply
    86,029,576.80x = 129,193,664.40 × 45,718,792.80
  4. Step 4: Simplify right side
    86,029,576.80x = 5,906,578,373,776,336
  5. Step 5: Solve for x
    x = 5,906,578,373,776,336/86,029,576.80
  6. Step 6: Final answer
    x = 68,657,531.44

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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.