Home / 787,434,836.79-1,086,691,152.96-452,906,822.55

Finding the Fourth Proportional to 787,434,836.79, 1,086,691,152.96 and 452,906,822.55

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Solution

The fourth proportional to 787,434,836.79, 1,086,691,152.96 and 452,906,822.55 is: 625,029,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,434,836.79 : 1,086,691,152.96 = 452,906,822.55 : x
  2. Step 2: Convert to fraction form
    787,434,836.79/1,086,691,152.96 = 452,906,822.55/x
  3. Step 3: Cross multiply
    787,434,836.79x = 1,086,691,152.96 × 452,906,822.55
  4. Step 4: Simplify right side
    787,434,836.79x = 492,169,837,180,309,632
  5. Step 5: Solve for x
    x = 492,169,837,180,309,632/787,434,836.79
  6. Step 6: Final answer
    x = 625,029,290.28

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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.