Home / 14,990,971.92-20,687,548.16-8,115,453.96

Finding the Fourth Proportional to 14,990,971.92, 20,687,548.16 and 8,115,453.96

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Solution

The fourth proportional to 14,990,971.92, 20,687,548.16 and 8,115,453.96 is: 11,199,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,971.92 : 20,687,548.16 = 8,115,453.96 : x
  2. Step 2: Convert to fraction form
    14,990,971.92/20,687,548.16 = 8,115,453.96/x
  3. Step 3: Cross multiply
    14,990,971.92x = 20,687,548.16 × 8,115,453.96
  4. Step 4: Simplify right side
    14,990,971.92x = 167,888,844,637,762.72
  5. Step 5: Solve for x
    x = 167,888,844,637,762.72/14,990,971.92
  6. Step 6: Final answer
    x = 11,199,330.21

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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.