Home / 10,508,908.60-15,763,362.90-7,639,127.20

Finding the Fourth Proportional to 10,508,908.60, 15,763,362.90 and 7,639,127.20

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Solution

The fourth proportional to 10,508,908.60, 15,763,362.90 and 7,639,127.20 is: 11,458,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508,908.60 : 15,763,362.90 = 7,639,127.20 : x
  2. Step 2: Convert to fraction form
    10,508,908.60/15,763,362.90 = 7,639,127.20/x
  3. Step 3: Cross multiply
    10,508,908.60x = 15,763,362.90 × 7,639,127.20
  4. Step 4: Simplify right side
    10,508,908.60x = 120,418,334,292,860.89
  5. Step 5: Solve for x
    x = 120,418,334,292,860.89/10,508,908.60
  6. Step 6: Final answer
    x = 11,458,690.80

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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.