Home / 18,988,610.61-28,435,676.72-13,282,115.25

Finding the Fourth Proportional to 18,988,610.61, 28,435,676.72 and 13,282,115.25

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Solution

The fourth proportional to 18,988,610.61, 28,435,676.72 and 13,282,115.25 is: 19,890,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988,610.61 : 28,435,676.72 = 13,282,115.25 : x
  2. Step 2: Convert to fraction form
    18,988,610.61/28,435,676.72 = 13,282,115.25/x
  3. Step 3: Cross multiply
    18,988,610.61x = 28,435,676.72 × 13,282,115.25
  4. Step 4: Simplify right side
    18,988,610.61x = 377,685,935,447,005.19
  5. Step 5: Solve for x
    x = 377,685,935,447,005.19/18,988,610.61
  6. Step 6: Final answer
    x = 19,890,130.10

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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.