Home / 5,216,187.17-7,823,441.47-1,428,784.61

Finding the Fourth Proportional to 5,216,187.17, 7,823,441.47 and 1,428,784.61

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Solution

The fourth proportional to 5,216,187.17, 7,823,441.47 and 1,428,784.61 is: 2,142,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,187.17 : 7,823,441.47 = 1,428,784.61 : x
  2. Step 2: Convert to fraction form
    5,216,187.17/7,823,441.47 = 1,428,784.61/x
  3. Step 3: Cross multiply
    5,216,187.17x = 7,823,441.47 × 1,428,784.61
  4. Step 4: Simplify right side
    5,216,187.17x = 11,178,012,726,882.61
  5. Step 5: Solve for x
    x = 11,178,012,726,882.61/5,216,187.17
  6. Step 6: Final answer
    x = 2,142,947.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.