Home / 86,290,438.95-129,436,142.29-28,782,552.24

Finding the Fourth Proportional to 86,290,438.95, 129,436,142.29 and 28,782,552.24

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Solution

The fourth proportional to 86,290,438.95, 129,436,142.29 and 28,782,552.24 is: 43,173,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,438.95 : 129,436,142.29 = 28,782,552.24 : x
  2. Step 2: Convert to fraction form
    86,290,438.95/129,436,142.29 = 28,782,552.24/x
  3. Step 3: Cross multiply
    86,290,438.95x = 129,436,142.29 × 28,782,552.24
  4. Step 4: Simplify right side
    86,290,438.95x = 3,725,502,527,205,998
  5. Step 5: Solve for x
    x = 3,725,502,527,205,998/86,290,438.95
  6. Step 6: Final answer
    x = 43,173,989.76

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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.