Home / 21,141,299.12-29,177,412.96-11,851,378.32

Finding the Fourth Proportional to 21,141,299.12, 29,177,412.96 and 11,851,378.32

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Solution

The fourth proportional to 21,141,299.12, 29,177,412.96 and 11,851,378.32 is: 16,356,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,299.12 : 29,177,412.96 = 11,851,378.32 : x
  2. Step 2: Convert to fraction form
    21,141,299.12/29,177,412.96 = 11,851,378.32/x
  3. Step 3: Cross multiply
    21,141,299.12x = 29,177,412.96 × 11,851,378.32
  4. Step 4: Simplify right side
    21,141,299.12x = 345,792,559,387,831.06
  5. Step 5: Solve for x
    x = 345,792,559,387,831.06/21,141,299.12
  6. Step 6: Final answer
    x = 16,356,258.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.