Home / 18,988,698.69-28,435,808.70-13,282,203.33

Finding the Fourth Proportional to 18,988,698.69, 28,435,808.70 and 13,282,203.33

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Solution

The fourth proportional to 18,988,698.69, 28,435,808.70 and 13,282,203.33 is: 19,890,262.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988,698.69 : 28,435,808.70 = 13,282,203.33 : x
  2. Step 2: Convert to fraction form
    18,988,698.69/28,435,808.70 = 13,282,203.33/x
  3. Step 3: Cross multiply
    18,988,698.69x = 28,435,808.70 × 13,282,203.33
  4. Step 4: Simplify right side
    18,988,698.69x = 377,690,193,006,382.94
  5. Step 5: Solve for x
    x = 377,690,193,006,382.94/18,988,698.69
  6. Step 6: Final answer
    x = 19,890,262.05

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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.