Home / 154,478,818.80-231,867,527.40-77,888,329.20

Finding the Fourth Proportional to 154,478,818.80, 231,867,527.40 and 77,888,329.20

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Solution

The fourth proportional to 154,478,818.80, 231,867,527.40 and 77,888,329.20 is: 116,907,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,478,818.80 : 231,867,527.40 = 77,888,329.20 : x
  2. Step 2: Convert to fraction form
    154,478,818.80/231,867,527.40 = 77,888,329.20/x
  3. Step 3: Cross multiply
    154,478,818.80x = 231,867,527.40 × 77,888,329.20
  4. Step 4: Simplify right side
    154,478,818.80x = 18,059,774,304,921,220
  5. Step 5: Solve for x
    x = 18,059,774,304,921,220/154,478,818.80
  6. Step 6: Final answer
    x = 116,907,770.56

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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.