Home / 298,995,139.30-448,492,708.95-218,373,571.30

Finding the Fourth Proportional to 298,995,139.30, 448,492,708.95 and 218,373,571.30

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Solution

The fourth proportional to 298,995,139.30, 448,492,708.95 and 218,373,571.30 is: 327,560,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,995,139.30 : 448,492,708.95 = 218,373,571.30 : x
  2. Step 2: Convert to fraction form
    298,995,139.30/448,492,708.95 = 218,373,571.30/x
  3. Step 3: Cross multiply
    298,995,139.30x = 448,492,708.95 × 218,373,571.30
  4. Step 4: Simplify right side
    298,995,139.30x = 97,938,954,555,422,976
  5. Step 5: Solve for x
    x = 97,938,954,555,422,976/298,995,139.30
  6. Step 6: Final answer
    x = 327,560,356.95

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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.