Home / 787,434,838.79-1,086,691,155.72-452,906,824.55

Finding the Fourth Proportional to 787,434,838.79, 1,086,691,155.72 and 452,906,824.55

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Solution

The fourth proportional to 787,434,838.79, 1,086,691,155.72 and 452,906,824.55 is: 625,029,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,434,838.79 : 1,086,691,155.72 = 452,906,824.55 : x
  2. Step 2: Convert to fraction form
    787,434,838.79/1,086,691,155.72 = 452,906,824.55/x
  3. Step 3: Cross multiply
    787,434,838.79x = 1,086,691,155.72 × 452,906,824.55
  4. Step 4: Simplify right side
    787,434,838.79x = 492,169,840,603,714,816
  5. Step 5: Solve for x
    x = 492,169,840,603,714,816/787,434,838.79
  6. Step 6: Final answer
    x = 625,029,293.04

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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.