Home / 12,601,821.60-18,902,732.40-9,578,512.80

Finding the Fourth Proportional to 12,601,821.60, 18,902,732.40 and 9,578,512.80

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Solution

The fourth proportional to 12,601,821.60, 18,902,732.40 and 9,578,512.80 is: 14,367,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601,821.60 : 18,902,732.40 = 9,578,512.80 : x
  2. Step 2: Convert to fraction form
    12,601,821.60/18,902,732.40 = 9,578,512.80/x
  3. Step 3: Cross multiply
    12,601,821.60x = 18,902,732.40 × 9,578,512.80
  4. Step 4: Simplify right side
    12,601,821.60x = 181,060,064,248,374.72
  5. Step 5: Solve for x
    x = 181,060,064,248,374.72/12,601,821.60
  6. Step 6: Final answer
    x = 14,367,769.20

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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.