Home / 28,215,051.02-38,936,908.32-15,825,806.56

Finding the Fourth Proportional to 28,215,051.02, 38,936,908.32 and 15,825,806.56

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Solution

The fourth proportional to 28,215,051.02, 38,936,908.32 and 15,825,806.56 is: 21,839,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215,051.02 : 38,936,908.32 = 15,825,806.56 : x
  2. Step 2: Convert to fraction form
    28,215,051.02/38,936,908.32 = 15,825,806.56/x
  3. Step 3: Cross multiply
    28,215,051.02x = 38,936,908.32 × 15,825,806.56
  4. Step 4: Simplify right side
    28,215,051.02x = 616,207,979,236,174.38
  5. Step 5: Solve for x
    x = 616,207,979,236,174.38/28,215,051.02
  6. Step 6: Final answer
    x = 21,839,690.41

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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.