Home / 12,781,907.56-17,638,942.74-6,980,690.92

Finding the Fourth Proportional to 12,781,907.56, 17,638,942.74 and 6,980,690.92

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Solution

The fourth proportional to 12,781,907.56, 17,638,942.74 and 6,980,690.92 is: 9,633,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,907.56 : 17,638,942.74 = 6,980,690.92 : x
  2. Step 2: Convert to fraction form
    12,781,907.56/17,638,942.74 = 6,980,690.92/x
  3. Step 3: Cross multiply
    12,781,907.56x = 17,638,942.74 × 6,980,690.92
  4. Step 4: Simplify right side
    12,781,907.56x = 123,132,007,423,517.91
  5. Step 5: Solve for x
    x = 123,132,007,423,517.91/12,781,907.56
  6. Step 6: Final answer
    x = 9,633,304.48

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1.5x scale

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.