Home / 12,217,405.32-18,304,939.80-7,415,031.96

Finding the Fourth Proportional to 12,217,405.32, 18,304,939.80 and 7,415,031.96

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Solution

The fourth proportional to 12,217,405.32, 18,304,939.80 and 7,415,031.96 is: 11,109,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217,405.32 : 18,304,939.80 = 7,415,031.96 : x
  2. Step 2: Convert to fraction form
    12,217,405.32/18,304,939.80 = 7,415,031.96/x
  3. Step 3: Cross multiply
    12,217,405.32x = 18,304,939.80 × 7,415,031.96
  4. Step 4: Simplify right side
    12,217,405.32x = 135,731,713,642,876.02
  5. Step 5: Solve for x
    x = 135,731,713,642,876.02/12,217,405.32
  6. Step 6: Final answer
    x = 11,109,700.47

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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.