Home / 13,439,576.88-20,153,760.10-4,215,172.77

Finding the Fourth Proportional to 13,439,576.88, 20,153,760.10 and 4,215,172.77

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Solution

The fourth proportional to 13,439,576.88, 20,153,760.10 and 4,215,172.77 is: 6,321,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,576.88 : 20,153,760.10 = 4,215,172.77 : x
  2. Step 2: Convert to fraction form
    13,439,576.88/20,153,760.10 = 4,215,172.77/x
  3. Step 3: Cross multiply
    13,439,576.88x = 20,153,760.10 × 4,215,172.77
  4. Step 4: Simplify right side
    13,439,576.88x = 84,951,580,786,632.47
  5. Step 5: Solve for x
    x = 84,951,580,786,632.47/13,439,576.88
  6. Step 6: Final answer
    x = 6,321,001.14

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1.5x scale

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.