Home / 86,933,051.70-130,399,577.55-77,863,125.30

Finding the Fourth Proportional to 86,933,051.70, 130,399,577.55 and 77,863,125.30

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Solution

The fourth proportional to 86,933,051.70, 130,399,577.55 and 77,863,125.30 is: 116,794,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,051.70 : 130,399,577.55 = 77,863,125.30 : x
  2. Step 2: Convert to fraction form
    86,933,051.70/130,399,577.55 = 77,863,125.30/x
  3. Step 3: Cross multiply
    86,933,051.70x = 130,399,577.55 × 77,863,125.30
  4. Step 4: Simplify right side
    86,933,051.70x = 10,153,318,645,842,716
  5. Step 5: Solve for x
    x = 10,153,318,645,842,716/86,933,051.70
  6. Step 6: Final answer
    x = 116,794,687.95

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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.