Home / 18,917,784.09-28,376,676.51-4,540,851.88

Finding the Fourth Proportional to 18,917,784.09, 28,376,676.51 and 4,540,851.88

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Solution

The fourth proportional to 18,917,784.09, 28,376,676.51 and 4,540,851.88 is: 6,811,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917,784.09 : 28,376,676.51 = 4,540,851.88 : x
  2. Step 2: Convert to fraction form
    18,917,784.09/28,376,676.51 = 4,540,851.88/x
  3. Step 3: Cross multiply
    18,917,784.09x = 28,376,676.51 × 4,540,851.88
  4. Step 4: Simplify right side
    18,917,784.09x = 128,854,284,878,585.34
  5. Step 5: Solve for x
    x = 128,854,284,878,585.34/18,917,784.09
  6. Step 6: Final answer
    x = 6,811,277.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.