Home / 13,668,785.60-20,506,130.85-4,085,132.90

Finding the Fourth Proportional to 13,668,785.60, 20,506,130.85 and 4,085,132.90

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Solution

The fourth proportional to 13,668,785.60, 20,506,130.85 and 4,085,132.90 is: 6,128,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668,785.60 : 20,506,130.85 = 4,085,132.90 : x
  2. Step 2: Convert to fraction form
    13,668,785.60/20,506,130.85 = 4,085,132.90/x
  3. Step 3: Cross multiply
    13,668,785.60x = 20,506,130.85 × 4,085,132.90
  4. Step 4: Simplify right side
    13,668,785.60x = 83,770,269,787,039.97
  5. Step 5: Solve for x
    x = 83,770,269,787,039.97/13,668,785.60
  6. Step 6: Final answer
    x = 6,128,581.74

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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.