Home / 12,783,778-17,641,508.72-6,982,563.36

Finding the Fourth Proportional to 12,783,778, 17,641,508.72 and 6,982,563.36

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Solution

The fourth proportional to 12,783,778, 17,641,508.72 and 6,982,563.36 is: 9,635,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,778 : 17,641,508.72 = 6,982,563.36 : x
  2. Step 2: Convert to fraction form
    12,783,778/17,641,508.72 = 6,982,563.36/x
  3. Step 3: Cross multiply
    12,783,778x = 17,641,508.72 × 6,982,563.36
  4. Step 4: Simplify right side
    12,783,778x = 123,182,952,403,392.50
  5. Step 5: Solve for x
    x = 123,182,952,403,392.50/12,783,778
  6. Step 6: Final answer
    x = 9,635,880.13

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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.