Home / 13,460,139.80-20,190,209.70-8,085,368.60

Finding the Fourth Proportional to 13,460,139.80, 20,190,209.70 and 8,085,368.60

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Solution

The fourth proportional to 13,460,139.80, 20,190,209.70 and 8,085,368.60 is: 12,128,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460,139.80 : 20,190,209.70 = 8,085,368.60 : x
  2. Step 2: Convert to fraction form
    13,460,139.80/20,190,209.70 = 8,085,368.60/x
  3. Step 3: Cross multiply
    13,460,139.80x = 20,190,209.70 × 8,085,368.60
  4. Step 4: Simplify right side
    13,460,139.80x = 163,245,287,535,795.41
  5. Step 5: Solve for x
    x = 163,245,287,535,795.41/13,460,139.80
  6. Step 6: Final answer
    x = 12,128,052.90

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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.