Home / 12,786,303.44-17,645,358.86-6,985,460.90

Finding the Fourth Proportional to 12,786,303.44, 17,645,358.86 and 6,985,460.90

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Solution

The fourth proportional to 12,786,303.44, 17,645,358.86 and 6,985,460.90 is: 9,640,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,303.44 : 17,645,358.86 = 6,985,460.90 : x
  2. Step 2: Convert to fraction form
    12,786,303.44/17,645,358.86 = 6,985,460.90/x
  3. Step 3: Cross multiply
    12,786,303.44x = 17,645,358.86 × 6,985,460.90
  4. Step 4: Simplify right side
    12,786,303.44x = 123,260,964,382,998.58
  5. Step 5: Solve for x
    x = 123,260,964,382,998.58/12,786,303.44
  6. Step 6: Final answer
    x = 9,640,078.15

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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.