Home / 144,601,686.54-199,549,604.65-78,521,596.38

Finding the Fourth Proportional to 144,601,686.54, 199,549,604.65 and 78,521,596.38

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Solution

The fourth proportional to 144,601,686.54, 199,549,604.65 and 78,521,596.38 is: 108,359,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,601,686.54 : 199,549,604.65 = 78,521,596.38 : x
  2. Step 2: Convert to fraction form
    144,601,686.54/199,549,604.65 = 78,521,596.38/x
  3. Step 3: Cross multiply
    144,601,686.54x = 199,549,604.65 × 78,521,596.38
  4. Step 4: Simplify right side
    144,601,686.54x = 15,668,953,514,115,870
  5. Step 5: Solve for x
    x = 15,668,953,514,115,870/144,601,686.54
  6. Step 6: Final answer
    x = 108,359,410.52

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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.