Home / 28,686,685.28-39,586,470.30-15,633,663.26

Finding the Fourth Proportional to 28,686,685.28, 39,586,470.30 and 15,633,663.26

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Solution

The fourth proportional to 28,686,685.28, 39,586,470.30 and 15,633,663.26 is: 21,573,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,685.28 : 39,586,470.30 = 15,633,663.26 : x
  2. Step 2: Convert to fraction form
    28,686,685.28/39,586,470.30 = 15,633,663.26/x
  3. Step 3: Cross multiply
    28,686,685.28x = 39,586,470.30 × 15,633,663.26
  4. Step 4: Simplify right side
    28,686,685.28x = 618,881,546,244,022.88
  5. Step 5: Solve for x
    x = 618,881,546,244,022.88/28,686,685.28
  6. Step 6: Final answer
    x = 21,573,825.63

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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.