Home / 31,054,956.15-42,855,840.96-18,009,781.83

Finding the Fourth Proportional to 31,054,956.15, 42,855,840.96 and 18,009,781.83

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Solution

The fourth proportional to 31,054,956.15, 42,855,840.96 and 18,009,781.83 is: 24,853,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,054,956.15 : 42,855,840.96 = 18,009,781.83 : x
  2. Step 2: Convert to fraction form
    31,054,956.15/42,855,840.96 = 18,009,781.83/x
  3. Step 3: Cross multiply
    31,054,956.15x = 42,855,840.96 × 18,009,781.83
  4. Step 4: Simplify right side
    31,054,956.15x = 771,824,345,830,777.75
  5. Step 5: Solve for x
    x = 771,824,345,830,777.75/31,054,956.15
  6. Step 6: Final answer
    x = 24,853,499.78

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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.