Home / 28,787,127.47-39,726,139.46-15,734,378.82

Finding the Fourth Proportional to 28,787,127.47, 39,726,139.46 and 15,734,378.82

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Solution

The fourth proportional to 28,787,127.47, 39,726,139.46 and 15,734,378.82 is: 21,713,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787,127.47 : 39,726,139.46 = 15,734,378.82 : x
  2. Step 2: Convert to fraction form
    28,787,127.47/39,726,139.46 = 15,734,378.82/x
  3. Step 3: Cross multiply
    28,787,127.47x = 39,726,139.46 × 15,734,378.82
  4. Step 4: Simplify right side
    28,787,127.47x = 625,066,127,241,118.38
  5. Step 5: Solve for x
    x = 625,066,127,241,118.38/28,787,127.47
  6. Step 6: Final answer
    x = 21,713,390.06

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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.