Home / 12,976,567.76-17,906,937-7,175,000.72

Finding the Fourth Proportional to 12,976,567.76, 17,906,937 and 7,175,000.72

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Solution

The fourth proportional to 12,976,567.76, 17,906,937 and 7,175,000.72 is: 9,901,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976,567.76 : 17,906,937 = 7,175,000.72 : x
  2. Step 2: Convert to fraction form
    12,976,567.76/17,906,937 = 7,175,000.72/x
  3. Step 3: Cross multiply
    12,976,567.76x = 17,906,937 × 7,175,000.72
  4. Step 4: Simplify right side
    12,976,567.76x = 128,482,285,867,994.64
  5. Step 5: Solve for x
    x = 128,482,285,867,994.64/12,976,567.76
  6. Step 6: Final answer
    x = 9,901,099.29

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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.