Home / 427,468,161.80-641,616,875.78-206,295,150.50

Finding the Fourth Proportional to 427,468,161.80, 641,616,875.78 and 206,295,150.50

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Solution

The fourth proportional to 427,468,161.80, 641,616,875.78 and 206,295,150.50 is: 309,642,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,468,161.80 : 641,616,875.78 = 206,295,150.50 : x
  2. Step 2: Convert to fraction form
    427,468,161.80/641,616,875.78 = 206,295,150.50/x
  3. Step 3: Cross multiply
    427,468,161.80x = 641,616,875.78 × 206,295,150.50
  4. Step 4: Simplify right side
    427,468,161.80x = 132,362,449,952,374,896
  5. Step 5: Solve for x
    x = 132,362,449,952,374,896/427,468,161.80
  6. Step 6: Final answer
    x = 309,642,826.72

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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.