Home / 9,515,990.50-13,132,080.18-5,165,077.79

Finding the Fourth Proportional to 9,515,990.50, 13,132,080.18 and 5,165,077.79

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Solution

The fourth proportional to 9,515,990.50, 13,132,080.18 and 5,165,077.79 is: 7,127,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515,990.50 : 13,132,080.18 = 5,165,077.79 : x
  2. Step 2: Convert to fraction form
    9,515,990.50/13,132,080.18 = 5,165,077.79/x
  3. Step 3: Cross multiply
    9,515,990.50x = 13,132,080.18 × 5,165,077.79
  4. Step 4: Simplify right side
    9,515,990.50x = 67,828,215,707,047.41
  5. Step 5: Solve for x
    x = 67,828,215,707,047.41/9,515,990.50
  6. Step 6: Final answer
    x = 7,127,814.57

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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.