Home / 168,791,613.30-253,027,987.65-99,757,427.40

Finding the Fourth Proportional to 168,791,613.30, 253,027,987.65 and 99,757,427.40

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Solution

The fourth proportional to 168,791,613.30, 253,027,987.65 and 99,757,427.40 is: 149,541,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,791,613.30 : 253,027,987.65 = 99,757,427.40 : x
  2. Step 2: Convert to fraction form
    168,791,613.30/253,027,987.65 = 99,757,427.40/x
  3. Step 3: Cross multiply
    168,791,613.30x = 253,027,987.65 × 99,757,427.40
  4. Step 4: Simplify right side
    168,791,613.30x = 25,241,421,108,162,972
  5. Step 5: Solve for x
    x = 25,241,421,108,162,972/168,791,613.30
  6. Step 6: Final answer
    x = 149,541,915.11

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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.