Home / 866,023,143.60-1,193,955,759.72-687,997,727.76

Finding the Fourth Proportional to 866,023,143.60, 1,193,955,759.72 and 687,997,727.76

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Solution

The fourth proportional to 866,023,143.60, 1,193,955,759.72 and 687,997,727.76 is: 948,518,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,023,143.60 : 1,193,955,759.72 = 687,997,727.76 : x
  2. Step 2: Convert to fraction form
    866,023,143.60/1,193,955,759.72 = 687,997,727.76/x
  3. Step 3: Cross multiply
    866,023,143.60x = 1,193,955,759.72 × 687,997,727.76
  4. Step 4: Simplify right side
    866,023,143.60x = 821,438,849,733,324,544
  5. Step 5: Solve for x
    x = 821,438,849,733,324,544/866,023,143.60
  6. Step 6: Final answer
    x = 948,518,357.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.