Home / 10,128,058.87-15,192,065.79-7,825,899.53

Finding the Fourth Proportional to 10,128,058.87, 15,192,065.79 and 7,825,899.53

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Solution

The fourth proportional to 10,128,058.87, 15,192,065.79 and 7,825,899.53 is: 11,738,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,058.87 : 15,192,065.79 = 7,825,899.53 : x
  2. Step 2: Convert to fraction form
    10,128,058.87/15,192,065.79 = 7,825,899.53/x
  3. Step 3: Cross multiply
    10,128,058.87x = 15,192,065.79 × 7,825,899.53
  4. Step 4: Simplify right side
    10,128,058.87x = 118,891,580,525,690.08
  5. Step 5: Solve for x
    x = 118,891,580,525,690.08/10,128,058.87
  6. Step 6: Final answer
    x = 11,738,831.90

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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.