Home / 154,814,344.96-232,365,006.24-78,191,182.72

Finding the Fourth Proportional to 154,814,344.96, 232,365,006.24 and 78,191,182.72

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Solution

The fourth proportional to 154,814,344.96, 232,365,006.24 and 78,191,182.72 is: 117,359,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,814,344.96 : 232,365,006.24 = 78,191,182.72 : x
  2. Step 2: Convert to fraction form
    154,814,344.96/232,365,006.24 = 78,191,182.72/x
  3. Step 3: Cross multiply
    154,814,344.96x = 232,365,006.24 × 78,191,182.72
  4. Step 4: Simplify right side
    154,814,344.96x = 18,168,894,660,645,780
  5. Step 5: Solve for x
    x = 18,168,894,660,645,780/154,814,344.96
  6. Step 6: Final answer
    x = 117,359,245.14

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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.