Home / 12,199,988.16-18,293,729.76-6,445,810.56

Finding the Fourth Proportional to 12,199,988.16, 18,293,729.76 and 6,445,810.56

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Solution

The fourth proportional to 12,199,988.16, 18,293,729.76 and 6,445,810.56 is: 9,665,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,988.16 : 18,293,729.76 = 6,445,810.56 : x
  2. Step 2: Convert to fraction form
    12,199,988.16/18,293,729.76 = 6,445,810.56/x
  3. Step 3: Cross multiply
    12,199,988.16x = 18,293,729.76 × 6,445,810.56
  4. Step 4: Simplify right side
    12,199,988.16x = 117,917,916,468,794.27
  5. Step 5: Solve for x
    x = 117,917,916,468,794.27/12,199,988.16
  6. Step 6: Final answer
    x = 9,665,412.37

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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.