Home / 288,861,718.95-398,629,172.15-165,105,053.28

Finding the Fourth Proportional to 288,861,718.95, 398,629,172.15 and 165,105,053.28

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Solution

The fourth proportional to 288,861,718.95, 398,629,172.15 and 165,105,053.28 is: 227,844,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,718.95 : 398,629,172.15 = 165,105,053.28 : x
  2. Step 2: Convert to fraction form
    288,861,718.95/398,629,172.15 = 165,105,053.28/x
  3. Step 3: Cross multiply
    288,861,718.95x = 398,629,172.15 × 165,105,053.28
  4. Step 4: Simplify right side
    288,861,718.95x = 65,815,690,706,788,040
  5. Step 5: Solve for x
    x = 65,815,690,706,788,040/288,861,718.95
  6. Step 6: Final answer
    x = 227,844,973.53

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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.