Home / 18,917,784.21-28,376,676.69-4,540,852.01

Finding the Fourth Proportional to 18,917,784.21, 28,376,676.69 and 4,540,852.01

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Solution

The fourth proportional to 18,917,784.21, 28,376,676.69 and 4,540,852.01 is: 6,811,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917,784.21 : 28,376,676.69 = 4,540,852.01 : x
  2. Step 2: Convert to fraction form
    18,917,784.21/28,376,676.69 = 4,540,852.01/x
  3. Step 3: Cross multiply
    18,917,784.21x = 28,376,676.69 × 4,540,852.01
  4. Step 4: Simplify right side
    18,917,784.21x = 128,854,289,243,023.27
  5. Step 5: Solve for x
    x = 128,854,289,243,023.27/18,917,784.21
  6. Step 6: Final answer
    x = 6,811,278.10

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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.