Home / 23,100,095.12-31,878,131.87-12,786,818.21

Finding the Fourth Proportional to 23,100,095.12, 31,878,131.87 and 12,786,818.21

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Solution

The fourth proportional to 23,100,095.12, 31,878,131.87 and 12,786,818.21 is: 17,645,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,100,095.12 : 31,878,131.87 = 12,786,818.21 : x
  2. Step 2: Convert to fraction form
    23,100,095.12/31,878,131.87 = 12,786,818.21/x
  3. Step 3: Cross multiply
    23,100,095.12x = 31,878,131.87 × 12,786,818.21
  4. Step 4: Simplify right side
    23,100,095.12x = 407,619,876,872,772.56
  5. Step 5: Solve for x
    x = 407,619,876,872,772.56/23,100,095.12
  6. Step 6: Final answer
    x = 17,645,809.46

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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.