Home / 112,902,351.44-155,514,948.08-79,805,700.64

Finding the Fourth Proportional to 112,902,351.44, 155,514,948.08 and 79,805,700.64

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Solution

The fourth proportional to 112,902,351.44, 155,514,948.08 and 79,805,700.64 is: 109,926,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,902,351.44 : 155,514,948.08 = 79,805,700.64 : x
  2. Step 2: Convert to fraction form
    112,902,351.44/155,514,948.08 = 79,805,700.64/x
  3. Step 3: Cross multiply
    112,902,351.44x = 155,514,948.08 × 79,805,700.64
  4. Step 4: Simplify right side
    112,902,351.44x = 12,410,979,390,729,806
  5. Step 5: Solve for x
    x = 12,410,979,390,729,806/112,902,351.44
  6. Step 6: Final answer
    x = 109,926,668.77

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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.