Home / 6,688,321,778.88-10,025,855,862.84-3,140,712,647.78

Finding the Fourth Proportional to 6,688,321,778.88, 10,025,855,862.84 and 3,140,712,647.78

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Solution

The fourth proportional to 6,688,321,778.88, 10,025,855,862.84 and 3,140,712,647.78 is: 4,707,957,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688,321,778.88 : 10,025,855,862.84 = 3,140,712,647.78 : x
  2. Step 2: Convert to fraction form
    6,688,321,778.88/10,025,855,862.84 = 3,140,712,647.78/x
  3. Step 3: Cross multiply
    6,688,321,778.88x = 10,025,855,862.84 × 3,140,712,647.78
  4. Step 4: Simplify right side
    6,688,321,778.88x = 31,488,332,313,190,723,584
  5. Step 5: Solve for x
    x = 31,488,332,313,190,723,584/6,688,321,778.88
  6. Step 6: Final answer
    x = 4,707,957,145.93

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1.5x scale

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.