Home / 13,781,740.40-20,671,033.20-3,685,148.72

Finding the Fourth Proportional to 13,781,740.40, 20,671,033.20 and 3,685,148.72

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Solution

The fourth proportional to 13,781,740.40, 20,671,033.20 and 3,685,148.72 is: 5,527,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781,740.40 : 20,671,033.20 = 3,685,148.72 : x
  2. Step 2: Convert to fraction form
    13,781,740.40/20,671,033.20 = 3,685,148.72/x
  3. Step 3: Cross multiply
    13,781,740.40x = 20,671,033.20 × 3,685,148.72
  4. Step 4: Simplify right side
    13,781,740.40x = 76,175,831,434,702.33
  5. Step 5: Solve for x
    x = 76,175,831,434,702.33/13,781,740.40
  6. Step 6: Final answer
    x = 5,527,301.29

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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.