Home / 20,484,670.32-28,268,510.63-11,192,040.41

Finding the Fourth Proportional to 20,484,670.32, 28,268,510.63 and 11,192,040.41

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Solution

The fourth proportional to 20,484,670.32, 28,268,510.63 and 11,192,040.41 is: 15,444,833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484,670.32 : 28,268,510.63 = 11,192,040.41 : x
  2. Step 2: Convert to fraction form
    20,484,670.32/28,268,510.63 = 11,192,040.41/x
  3. Step 3: Cross multiply
    20,484,670.32x = 28,268,510.63 × 11,192,040.41
  4. Step 4: Simplify right side
    20,484,670.32x = 316,382,313,301,474.56
  5. Step 5: Solve for x
    x = 316,382,313,301,474.56/20,484,670.32
  6. Step 6: Final answer
    x = 15,444,833.06

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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.