Home / 13,781,739.89-20,671,032.46-3,685,148.21

Finding the Fourth Proportional to 13,781,739.89, 20,671,032.46 and 3,685,148.21

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Solution

The fourth proportional to 13,781,739.89, 20,671,032.46 and 3,685,148.21 is: 5,527,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781,739.89 : 20,671,032.46 = 3,685,148.21 : x
  2. Step 2: Convert to fraction form
    13,781,739.89/20,671,032.46 = 3,685,148.21/x
  3. Step 3: Cross multiply
    13,781,739.89x = 20,671,032.46 × 3,685,148.21
  4. Step 4: Simplify right side
    13,781,739.89x = 76,175,818,268,820.91
  5. Step 5: Solve for x
    x = 76,175,818,268,820.91/13,781,739.89
  6. Step 6: Final answer
    x = 5,527,300.54

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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.