Home / 18,620,392.12-25,695,737.67-10,780,234.72

Finding the Fourth Proportional to 18,620,392.12, 25,695,737.67 and 10,780,234.72

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Solution

The fourth proportional to 18,620,392.12, 25,695,737.67 and 10,780,234.72 is: 14,876,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620,392.12 : 25,695,737.67 = 10,780,234.72 : x
  2. Step 2: Convert to fraction form
    18,620,392.12/25,695,737.67 = 10,780,234.72/x
  3. Step 3: Cross multiply
    18,620,392.12x = 25,695,737.67 × 10,780,234.72
  4. Step 4: Simplify right side
    18,620,392.12x = 277,006,083,386,145.94
  5. Step 5: Solve for x
    x = 277,006,083,386,145.94/18,620,392.12
  6. Step 6: Final answer
    x = 14,876,490.33

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1.5x scale

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.