Home / 12,776,724.30-17,639,838.28-8,133,130.38

Finding the Fourth Proportional to 12,776,724.30, 17,639,838.28 and 8,133,130.38

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Solution

The fourth proportional to 12,776,724.30, 17,639,838.28 and 8,133,130.38 is: 11,228,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,724.30 : 17,639,838.28 = 8,133,130.38 : x
  2. Step 2: Convert to fraction form
    12,776,724.30/17,639,838.28 = 8,133,130.38/x
  3. Step 3: Cross multiply
    12,776,724.30x = 17,639,838.28 × 8,133,130.38
  4. Step 4: Simplify right side
    12,776,724.30x = 143,467,104,613,354.97
  5. Step 5: Solve for x
    x = 143,467,104,613,354.97/12,776,724.30
  6. Step 6: Final answer
    x = 11,228,786.13

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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.