Home / 279,487,200-385,693,865.28-162,082,139.52

Finding the Fourth Proportional to 279,487,200, 385,693,865.28 and 162,082,139.52

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Solution

The fourth proportional to 279,487,200, 385,693,865.28 and 162,082,139.52 is: 223,674,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,487,200 : 385,693,865.28 = 162,082,139.52 : x
  2. Step 2: Convert to fraction form
    279,487,200/385,693,865.28 = 162,082,139.52/x
  3. Step 3: Cross multiply
    279,487,200x = 385,693,865.28 × 162,082,139.52
  4. Step 4: Simplify right side
    279,487,200x = 62,514,086,884,321,040
  5. Step 5: Solve for x
    x = 62,514,086,884,321,040/279,487,200
  6. Step 6: Final answer
    x = 223,674,239.41

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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.