Home / 28,419,216.51-39,218,546.61-15,366,472.05

Finding the Fourth Proportional to 28,419,216.51, 39,218,546.61 and 15,366,472.05

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Solution

The fourth proportional to 28,419,216.51, 39,218,546.61 and 15,366,472.05 is: 21,205,746.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419,216.51 : 39,218,546.61 = 15,366,472.05 : x
  2. Step 2: Convert to fraction form
    28,419,216.51/39,218,546.61 = 15,366,472.05/x
  3. Step 3: Cross multiply
    28,419,216.51x = 39,218,546.61 × 15,366,472.05
  4. Step 4: Simplify right side
    28,419,216.51x = 602,650,700,324,187.25
  5. Step 5: Solve for x
    x = 602,650,700,324,187.25/28,419,216.51
  6. Step 6: Final answer
    x = 21,205,746.47

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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.