Home / 79,452,031.80-119,178,047.70-43,172,326.20

Finding the Fourth Proportional to 79,452,031.80, 119,178,047.70 and 43,172,326.20

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Solution

The fourth proportional to 79,452,031.80, 119,178,047.70 and 43,172,326.20 is: 64,758,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452,031.80 : 119,178,047.70 = 43,172,326.20 : x
  2. Step 2: Convert to fraction form
    79,452,031.80/119,178,047.70 = 43,172,326.20/x
  3. Step 3: Cross multiply
    79,452,031.80x = 119,178,047.70 × 43,172,326.20
  4. Step 4: Simplify right side
    79,452,031.80x = 5,145,193,551,183,560
  5. Step 5: Solve for x
    x = 5,145,193,551,183,560/79,452,031.80
  6. Step 6: Final answer
    x = 64,758,489.30

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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.