Home / 275,915,715.60-413,875,067.85-81,828,812.40

Finding the Fourth Proportional to 275,915,715.60, 413,875,067.85 and 81,828,812.40

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Solution

The fourth proportional to 275,915,715.60, 413,875,067.85 and 81,828,812.40 is: 122,743,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,915,715.60 : 413,875,067.85 = 81,828,812.40 : x
  2. Step 2: Convert to fraction form
    275,915,715.60/413,875,067.85 = 81,828,812.40/x
  3. Step 3: Cross multiply
    275,915,715.60x = 413,875,067.85 × 81,828,812.40
  4. Step 4: Simplify right side
    275,915,715.60x = 33,866,905,284,134,924
  5. Step 5: Solve for x
    x = 33,866,905,284,134,924/275,915,715.60
  6. Step 6: Final answer
    x = 122,743,661.81

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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.