Home / 13,413,863.20-20,119,239.60-3,830,720.80

Finding the Fourth Proportional to 13,413,863.20, 20,119,239.60 and 3,830,720.80

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Solution

The fourth proportional to 13,413,863.20, 20,119,239.60 and 3,830,720.80 is: 5,745,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413,863.20 : 20,119,239.60 = 3,830,720.80 : x
  2. Step 2: Convert to fraction form
    13,413,863.20/20,119,239.60 = 3,830,720.80/x
  3. Step 3: Cross multiply
    13,413,863.20x = 20,119,239.60 × 3,830,720.80
  4. Step 4: Simplify right side
    13,413,863.20x = 77,071,189,615,903.69
  5. Step 5: Solve for x
    x = 77,071,189,615,903.69/13,413,863.20
  6. Step 6: Final answer
    x = 5,745,637.07

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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.