Home / 689,973,380.10-1,034,960,070.15-680,903,453.70

Finding the Fourth Proportional to 689,973,380.10, 1,034,960,070.15 and 680,903,453.70

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Solution

The fourth proportional to 689,973,380.10, 1,034,960,070.15 and 680,903,453.70 is: 1,021,355,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,973,380.10 : 1,034,960,070.15 = 680,903,453.70 : x
  2. Step 2: Convert to fraction form
    689,973,380.10/1,034,960,070.15 = 680,903,453.70/x
  3. Step 3: Cross multiply
    689,973,380.10x = 1,034,960,070.15 × 680,903,453.70
  4. Step 4: Simplify right side
    689,973,380.10x = 704,707,886,206,729,344
  5. Step 5: Solve for x
    x = 704,707,886,206,729,344/689,973,380.10
  6. Step 6: Final answer
    x = 1,021,355,180.55

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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.