Home / 8,085,312.80-12,127,969.20-5,380,868.60

Finding the Fourth Proportional to 8,085,312.80, 12,127,969.20 and 5,380,868.60

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Solution

The fourth proportional to 8,085,312.80, 12,127,969.20 and 5,380,868.60 is: 8,071,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,312.80 : 12,127,969.20 = 5,380,868.60 : x
  2. Step 2: Convert to fraction form
    8,085,312.80/12,127,969.20 = 5,380,868.60/x
  3. Step 3: Cross multiply
    8,085,312.80x = 12,127,969.20 × 5,380,868.60
  4. Step 4: Simplify right side
    8,085,312.80x = 65,259,008,650,047.11
  5. Step 5: Solve for x
    x = 65,259,008,650,047.11/8,085,312.80
  6. Step 6: Final answer
    x = 8,071,302.90

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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.