Home / 18,917,783.71-28,376,675.94-4,540,851.51

Finding the Fourth Proportional to 18,917,783.71, 28,376,675.94 and 4,540,851.51

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Solution

The fourth proportional to 18,917,783.71, 28,376,675.94 and 4,540,851.51 is: 6,811,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917,783.71 : 28,376,675.94 = 4,540,851.51 : x
  2. Step 2: Convert to fraction form
    18,917,783.71/28,376,675.94 = 4,540,851.51/x
  3. Step 3: Cross multiply
    18,917,783.71x = 28,376,675.94 × 4,540,851.51
  4. Step 4: Simplify right side
    18,917,783.71x = 128,854,271,790,929.67
  5. Step 5: Solve for x
    x = 128,854,271,790,929.67/18,917,783.71
  6. Step 6: Final answer
    x = 6,811,277.36

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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.