Home / 1,058,260,871.51-1,587,288,734.57-321,337,253.64

Finding the Fourth Proportional to 1,058,260,871.51, 1,587,288,734.57 and 321,337,253.64

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Solution

The fourth proportional to 1,058,260,871.51, 1,587,288,734.57 and 321,337,253.64 is: 481,974,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,260,871.51 : 1,587,288,734.57 = 321,337,253.64 : x
  2. Step 2: Convert to fraction form
    1,058,260,871.51/1,587,288,734.57 = 321,337,253.64/x
  3. Step 3: Cross multiply
    1,058,260,871.51x = 1,587,288,734.57 × 321,337,253.64
  4. Step 4: Simplify right side
    1,058,260,871.51x = 510,055,002,696,438,272
  5. Step 5: Solve for x
    x = 510,055,002,696,438,272/1,058,260,871.51
  6. Step 6: Final answer
    x = 481,974,734.61

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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.