Home / 129,037,818.30-193,556,727.45-128,142,023.10

Finding the Fourth Proportional to 129,037,818.30, 193,556,727.45 and 128,142,023.10

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Solution

The fourth proportional to 129,037,818.30, 193,556,727.45 and 128,142,023.10 is: 192,213,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,037,818.30 : 193,556,727.45 = 128,142,023.10 : x
  2. Step 2: Convert to fraction form
    129,037,818.30/193,556,727.45 = 128,142,023.10/x
  3. Step 3: Cross multiply
    129,037,818.30x = 193,556,727.45 × 128,142,023.10
  4. Step 4: Simplify right side
    129,037,818.30x = 24,802,750,640,058,300
  5. Step 5: Solve for x
    x = 24,802,750,640,058,300/129,037,818.30
  6. Step 6: Final answer
    x = 192,213,034.65

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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.