Home / 5,128,401.60-7,682,104.80-2,605,478.40

Finding the Fourth Proportional to 5,128,401.60, 7,682,104.80 and 2,605,478.40

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Solution

The fourth proportional to 5,128,401.60, 7,682,104.80 and 2,605,478.40 is: 3,902,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,401.60 : 7,682,104.80 = 2,605,478.40 : x
  2. Step 2: Convert to fraction form
    5,128,401.60/7,682,104.80 = 2,605,478.40/x
  3. Step 3: Cross multiply
    5,128,401.60x = 7,682,104.80 × 2,605,478.40
  4. Step 4: Simplify right side
    5,128,401.60x = 20,015,558,122,936.32
  5. Step 5: Solve for x
    x = 20,015,558,122,936.32/5,128,401.60
  6. Step 6: Final answer
    x = 3,902,884.31

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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.