Home / 131,132,043.18-196,663,791.69-38,990,966.63

Finding the Fourth Proportional to 131,132,043.18, 196,663,791.69 and 38,990,966.63

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Solution

The fourth proportional to 131,132,043.18, 196,663,791.69 and 38,990,966.63 is: 58,476,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,132,043.18 : 196,663,791.69 = 38,990,966.63 : x
  2. Step 2: Convert to fraction form
    131,132,043.18/196,663,791.69 = 38,990,966.63/x
  3. Step 3: Cross multiply
    131,132,043.18x = 196,663,791.69 × 38,990,966.63
  4. Step 4: Simplify right side
    131,132,043.18x = 7,668,111,338,130,742
  5. Step 5: Solve for x
    x = 7,668,111,338,130,742/131,132,043.18
  6. Step 6: Final answer
    x = 58,476,259.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.