Home / 485,960,987.57-670,625,729.49-274,312,367.64

Finding the Fourth Proportional to 485,960,987.57, 670,625,729.49 and 274,312,367.64

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Solution

The fourth proportional to 485,960,987.57, 670,625,729.49 and 274,312,367.64 is: 378,550,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,960,987.57 : 670,625,729.49 = 274,312,367.64 : x
  2. Step 2: Convert to fraction form
    485,960,987.57/670,625,729.49 = 274,312,367.64/x
  3. Step 3: Cross multiply
    485,960,987.57x = 670,625,729.49 × 274,312,367.64
  4. Step 4: Simplify right side
    485,960,987.57x = 183,960,931,657,735,456
  5. Step 5: Solve for x
    x = 183,960,931,657,735,456/485,960,987.57
  6. Step 6: Final answer
    x = 378,550,822.73

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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.