Home / 131,126,959.20-196,690,438.80-96,689,582.40

Finding the Fourth Proportional to 131,126,959.20, 196,690,438.80 and 96,689,582.40

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Solution

The fourth proportional to 131,126,959.20, 196,690,438.80 and 96,689,582.40 is: 145,034,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,959.20 : 196,690,438.80 = 96,689,582.40 : x
  2. Step 2: Convert to fraction form
    131,126,959.20/196,690,438.80 = 96,689,582.40/x
  3. Step 3: Cross multiply
    131,126,959.20x = 196,690,438.80 × 96,689,582.40
  4. Step 4: Simplify right side
    131,126,959.20x = 19,017,916,389,644,760
  5. Step 5: Solve for x
    x = 19,017,916,389,644,760/131,126,959.20
  6. Step 6: Final answer
    x = 145,034,373.60

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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.