Home / 28,117,548.63-38,805,806.51-15,728,330.34

Finding the Fourth Proportional to 28,117,548.63, 38,805,806.51 and 15,728,330.34

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Solution

The fourth proportional to 28,117,548.63, 38,805,806.51 and 15,728,330.34 is: 21,707,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117,548.63 : 38,805,806.51 = 15,728,330.34 : x
  2. Step 2: Convert to fraction form
    28,117,548.63/38,805,806.51 = 15,728,330.34/x
  3. Step 3: Cross multiply
    28,117,548.63x = 38,805,806.51 × 15,728,330.34
  4. Step 4: Simplify right side
    28,117,548.63x = 610,350,543,820,760.88
  5. Step 5: Solve for x
    x = 610,350,543,820,760.88/28,117,548.63
  6. Step 6: Final answer
    x = 21,707,103.70

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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.