Home / 79,891,614.28-109,827,205.05-68,686,828.52

Finding the Fourth Proportional to 79,891,614.28, 109,827,205.05 and 68,686,828.52

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Solution

The fourth proportional to 79,891,614.28, 109,827,205.05 and 68,686,828.52 is: 94,423,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,891,614.28 : 109,827,205.05 = 68,686,828.52 : x
  2. Step 2: Convert to fraction form
    79,891,614.28/109,827,205.05 = 68,686,828.52/x
  3. Step 3: Cross multiply
    79,891,614.28x = 109,827,205.05 × 68,686,828.52
  4. Step 4: Simplify right side
    79,891,614.28x = 7,543,682,400,100,227
  5. Step 5: Solve for x
    x = 7,543,682,400,100,227/79,891,614.28
  6. Step 6: Final answer
    x = 94,423,957.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.