Home / 23,100,088.72-31,878,123.06-12,786,811.81

Finding the Fourth Proportional to 23,100,088.72, 31,878,123.06 and 12,786,811.81

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Solution

The fourth proportional to 23,100,088.72, 31,878,123.06 and 12,786,811.81 is: 17,645,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,100,088.72 : 31,878,123.06 = 12,786,811.81 : x
  2. Step 2: Convert to fraction form
    23,100,088.72/31,878,123.06 = 12,786,811.81/x
  3. Step 3: Cross multiply
    23,100,088.72x = 31,878,123.06 × 12,786,811.81
  4. Step 4: Simplify right side
    23,100,088.72x = 407,619,560,456,208.38
  5. Step 5: Solve for x
    x = 407,619,560,456,208.38/23,100,088.72
  6. Step 6: Final answer
    x = 17,645,800.65

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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.