Home / 778,305,862.77-1,074,086,182.53-425,896,706.85

Finding the Fourth Proportional to 778,305,862.77, 1,074,086,182.53 and 425,896,706.85

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Solution

The fourth proportional to 778,305,862.77, 1,074,086,182.53 and 425,896,706.85 is: 587,750,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,305,862.77 : 1,074,086,182.53 = 425,896,706.85 : x
  2. Step 2: Convert to fraction form
    778,305,862.77/1,074,086,182.53 = 425,896,706.85/x
  3. Step 3: Cross multiply
    778,305,862.77x = 1,074,086,182.53 × 425,896,706.85
  4. Step 4: Simplify right side
    778,305,862.77x = 457,449,768,012,615,040
  5. Step 5: Solve for x
    x = 457,449,768,012,615,040/778,305,862.77
  6. Step 6: Final answer
    x = 587,750,638.78

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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.