Home / 10,265,253.12-15,390,881.28-5,206,809.60

Finding the Fourth Proportional to 10,265,253.12, 15,390,881.28 and 5,206,809.60

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Solution

The fourth proportional to 10,265,253.12, 15,390,881.28 and 5,206,809.60 is: 7,806,664.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265,253.12 : 15,390,881.28 = 5,206,809.60 : x
  2. Step 2: Convert to fraction form
    10,265,253.12/15,390,881.28 = 5,206,809.60/x
  3. Step 3: Cross multiply
    10,265,253.12x = 15,390,881.28 × 5,206,809.60
  4. Step 4: Simplify right side
    10,265,253.12x = 80,137,388,401,164.28
  5. Step 5: Solve for x
    x = 80,137,388,401,164.28/10,265,253.12
  6. Step 6: Final answer
    x = 7,806,664.63

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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.