Home / 648,236,145.26-972,356,709.82-156,948,596.30

Finding the Fourth Proportional to 648,236,145.26, 972,356,709.82 and 156,948,596.30

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Solution

The fourth proportional to 648,236,145.26, 972,356,709.82 and 156,948,596.30 is: 235,423,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,236,145.26 : 972,356,709.82 = 156,948,596.30 : x
  2. Step 2: Convert to fraction form
    648,236,145.26/972,356,709.82 = 156,948,596.30/x
  3. Step 3: Cross multiply
    648,236,145.26x = 972,356,709.82 × 156,948,596.30
  4. Step 4: Simplify right side
    648,236,145.26x = 152,610,020,709,135,456
  5. Step 5: Solve for x
    x = 152,610,020,709,135,456/648,236,145.26
  6. Step 6: Final answer
    x = 235,423,497.79

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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.