Home / 752,286,358.80-1,128,429,538.20-199,587,718.80

Finding the Fourth Proportional to 752,286,358.80, 1,128,429,538.20 and 199,587,718.80

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Solution

The fourth proportional to 752,286,358.80, 1,128,429,538.20 and 199,587,718.80 is: 299,381,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,286,358.80 : 1,128,429,538.20 = 199,587,718.80 : x
  2. Step 2: Convert to fraction form
    752,286,358.80/1,128,429,538.20 = 199,587,718.80/x
  3. Step 3: Cross multiply
    752,286,358.80x = 1,128,429,538.20 × 199,587,718.80
  4. Step 4: Simplify right side
    752,286,358.80x = 225,220,677,355,875,488
  5. Step 5: Solve for x
    x = 225,220,677,355,875,488/752,286,358.80
  6. Step 6: Final answer
    x = 299,381,578.20

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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.