Home / 787,434,840.79-1,086,691,158.48-452,906,826.55

Finding the Fourth Proportional to 787,434,840.79, 1,086,691,158.48 and 452,906,826.55

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Solution

The fourth proportional to 787,434,840.79, 1,086,691,158.48 and 452,906,826.55 is: 625,029,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,434,840.79 : 1,086,691,158.48 = 452,906,826.55 : x
  2. Step 2: Convert to fraction form
    787,434,840.79/1,086,691,158.48 = 452,906,826.55/x
  3. Step 3: Cross multiply
    787,434,840.79x = 1,086,691,158.48 × 452,906,826.55
  4. Step 4: Simplify right side
    787,434,840.79x = 492,169,844,027,119,936
  5. Step 5: Solve for x
    x = 492,169,844,027,119,936/787,434,840.79
  6. Step 6: Final answer
    x = 625,029,295.80

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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.