Home / 288,747,572.31-398,488,503.03-163,310,888.76

Finding the Fourth Proportional to 288,747,572.31, 398,488,503.03 and 163,310,888.76

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Solution

The fourth proportional to 288,747,572.31, 398,488,503.03 and 163,310,888.76 is: 225,378,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747,572.31 : 398,488,503.03 = 163,310,888.76 : x
  2. Step 2: Convert to fraction form
    288,747,572.31/398,488,503.03 = 163,310,888.76/x
  3. Step 3: Cross multiply
    288,747,572.31x = 398,488,503.03 × 163,310,888.76
  4. Step 4: Simplify right side
    288,747,572.31x = 65,077,511,590,471,248
  5. Step 5: Solve for x
    x = 65,077,511,590,471,248/288,747,572.31
  6. Step 6: Final answer
    x = 225,378,558.41

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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.