Home / 12,181,302.12-18,252,019.84-7,374,421.92

Finding the Fourth Proportional to 12,181,302.12, 18,252,019.84 and 7,374,421.92

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Solution

The fourth proportional to 12,181,302.12, 18,252,019.84 and 7,374,421.92 is: 11,049,565.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,302.12 : 18,252,019.84 = 7,374,421.92 : x
  2. Step 2: Convert to fraction form
    12,181,302.12/18,252,019.84 = 7,374,421.92/x
  3. Step 3: Cross multiply
    12,181,302.12x = 18,252,019.84 × 7,374,421.92
  4. Step 4: Simplify right side
    12,181,302.12x = 134,598,095,192,370.89
  5. Step 5: Solve for x
    x = 134,598,095,192,370.89/12,181,302.12
  6. Step 6: Final answer
    x = 11,049,565.46

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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.