Home / 119,520,428.65-179,062,150.03-86,649,589.01

Finding the Fourth Proportional to 119,520,428.65, 179,062,150.03 and 86,649,589.01

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Solution

The fourth proportional to 119,520,428.65, 179,062,150.03 and 86,649,589.01 is: 129,815,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,520,428.65 : 179,062,150.03 = 86,649,589.01 : x
  2. Step 2: Convert to fraction form
    119,520,428.65/179,062,150.03 = 86,649,589.01/x
  3. Step 3: Cross multiply
    119,520,428.65x = 179,062,150.03 × 86,649,589.01
  4. Step 4: Simplify right side
    119,520,428.65x = 15,515,661,707,577,492
  5. Step 5: Solve for x
    x = 15,515,661,707,577,492/119,520,428.65
  6. Step 6: Final answer
    x = 129,815,981.11

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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.