Home / 12,032,881.74-18,040,346.01-7,239,447.90

Finding the Fourth Proportional to 12,032,881.74, 18,040,346.01 and 7,239,447.90

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Solution

The fourth proportional to 12,032,881.74, 18,040,346.01 and 7,239,447.90 is: 10,853,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,032,881.74 : 18,040,346.01 = 7,239,447.90 : x
  2. Step 2: Convert to fraction form
    12,032,881.74/18,040,346.01 = 7,239,447.90/x
  3. Step 3: Cross multiply
    12,032,881.74x = 18,040,346.01 × 7,239,447.90
  4. Step 4: Simplify right side
    12,032,881.74x = 130,602,145,037,367.89
  5. Step 5: Solve for x
    x = 130,602,145,037,367.89/12,032,881.74
  6. Step 6: Final answer
    x = 10,853,771.18

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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.