Home / 12,947,169.24-17,865,821.52-7,145,576.40

Finding the Fourth Proportional to 12,947,169.24, 17,865,821.52 and 7,145,576.40

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Solution

The fourth proportional to 12,947,169.24, 17,865,821.52 and 7,145,576.40 is: 9,860,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,169.24 : 17,865,821.52 = 7,145,576.40 : x
  2. Step 2: Convert to fraction form
    12,947,169.24/17,865,821.52 = 7,145,576.40/x
  3. Step 3: Cross multiply
    12,947,169.24x = 17,865,821.52 × 7,145,576.40
  4. Step 4: Simplify right side
    12,947,169.24x = 127,661,592,619,924.12
  5. Step 5: Solve for x
    x = 127,661,592,619,924.12/12,947,169.24
  6. Step 6: Final answer
    x = 9,860,193.39

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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.