Home / 15,012,279.06-20,716,720.02-8,485,678.95

Finding the Fourth Proportional to 15,012,279.06, 20,716,720.02 and 8,485,678.95

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Solution

The fourth proportional to 15,012,279.06, 20,716,720.02 and 8,485,678.95 is: 11,710,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,279.06 : 20,716,720.02 = 8,485,678.95 : x
  2. Step 2: Convert to fraction form
    15,012,279.06/20,716,720.02 = 8,485,678.95/x
  3. Step 3: Cross multiply
    15,012,279.06x = 20,716,720.02 × 8,485,678.95
  4. Step 4: Simplify right side
    15,012,279.06x = 175,795,434,986,757.56
  5. Step 5: Solve for x
    x = 175,795,434,986,757.56/15,012,279.06
  6. Step 6: Final answer
    x = 11,710,109.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.