Home / 15,784,103.52-21,785,702.82-9,259,828.92

Finding the Fourth Proportional to 15,784,103.52, 21,785,702.82 and 9,259,828.92

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Solution

The fourth proportional to 15,784,103.52, 21,785,702.82 and 9,259,828.92 is: 12,780,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,103.52 : 21,785,702.82 = 9,259,828.92 : x
  2. Step 2: Convert to fraction form
    15,784,103.52/21,785,702.82 = 9,259,828.92/x
  3. Step 3: Cross multiply
    15,784,103.52x = 21,785,702.82 × 9,259,828.92
  4. Step 4: Simplify right side
    15,784,103.52x = 201,731,881,015,161.56
  5. Step 5: Solve for x
    x = 201,731,881,015,161.56/15,784,103.52
  6. Step 6: Final answer
    x = 12,780,699.31

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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.