Home / 853,124,808.30-1,279,687,212.45-754,489,358.70

Finding the Fourth Proportional to 853,124,808.30, 1,279,687,212.45 and 754,489,358.70

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Solution

The fourth proportional to 853,124,808.30, 1,279,687,212.45 and 754,489,358.70 is: 1,131,734,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,124,808.30 : 1,279,687,212.45 = 754,489,358.70 : x
  2. Step 2: Convert to fraction form
    853,124,808.30/1,279,687,212.45 = 754,489,358.70/x
  3. Step 3: Cross multiply
    853,124,808.30x = 1,279,687,212.45 × 754,489,358.70
  4. Step 4: Simplify right side
    853,124,808.30x = 965,510,384,257,991,296
  5. Step 5: Solve for x
    x = 965,510,384,257,991,296/853,124,808.30
  6. Step 6: Final answer
    x = 1,131,734,038.05

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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.