Home / 275,915,715.11-413,875,067.11-81,828,811.90

Finding the Fourth Proportional to 275,915,715.11, 413,875,067.11 and 81,828,811.90

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Solution

The fourth proportional to 275,915,715.11, 413,875,067.11 and 81,828,811.90 is: 122,743,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,915,715.11 : 413,875,067.11 = 81,828,811.90 : x
  2. Step 2: Convert to fraction form
    275,915,715.11/413,875,067.11 = 81,828,811.90/x
  3. Step 3: Cross multiply
    275,915,715.11x = 413,875,067.11 × 81,828,811.90
  4. Step 4: Simplify right side
    275,915,715.11x = 33,866,905,014,165,548
  5. Step 5: Solve for x
    x = 33,866,905,014,165,548/275,915,715.11
  6. Step 6: Final answer
    x = 122,743,661.05

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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.