Home / 288,747,570.30-398,488,500.27-163,310,886.76

Finding the Fourth Proportional to 288,747,570.30, 398,488,500.27 and 163,310,886.76

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Solution

The fourth proportional to 288,747,570.30, 398,488,500.27 and 163,310,886.76 is: 225,378,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747,570.30 : 398,488,500.27 = 163,310,886.76 : x
  2. Step 2: Convert to fraction form
    288,747,570.30/398,488,500.27 = 163,310,886.76/x
  3. Step 3: Cross multiply
    288,747,570.30x = 398,488,500.27 × 163,310,886.76
  4. Step 4: Simplify right side
    288,747,570.30x = 65,077,510,342,756,192
  5. Step 5: Solve for x
    x = 65,077,510,342,756,192/288,747,570.30
  6. Step 6: Final answer
    x = 225,378,555.65

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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.