Home / 86,290,439.95-129,436,143.79-28,782,553.24

Finding the Fourth Proportional to 86,290,439.95, 129,436,143.79 and 28,782,553.24

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Solution

The fourth proportional to 86,290,439.95, 129,436,143.79 and 28,782,553.24 is: 43,173,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,439.95 : 129,436,143.79 = 28,782,553.24 : x
  2. Step 2: Convert to fraction form
    86,290,439.95/129,436,143.79 = 28,782,553.24/x
  3. Step 3: Cross multiply
    86,290,439.95x = 129,436,143.79 × 28,782,553.24
  4. Step 4: Simplify right side
    86,290,439.95x = 3,725,502,699,815,970.50
  5. Step 5: Solve for x
    x = 3,725,502,699,815,970.50/86,290,439.95
  6. Step 6: Final answer
    x = 43,173,991.26

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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.