Home / 420,820,477.80-580,750,194.22-235,181,488.02

Finding the Fourth Proportional to 420,820,477.80, 580,750,194.22 and 235,181,488.02

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Solution

The fourth proportional to 420,820,477.80, 580,750,194.22 and 235,181,488.02 is: 324,560,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,820,477.80 : 580,750,194.22 = 235,181,488.02 : x
  2. Step 2: Convert to fraction form
    420,820,477.80/580,750,194.22 = 235,181,488.02/x
  3. Step 3: Cross multiply
    420,820,477.80x = 580,750,194.22 × 235,181,488.02
  4. Step 4: Simplify right side
    420,820,477.80x = 136,581,694,844,563,616
  5. Step 5: Solve for x
    x = 136,581,694,844,563,616/420,820,477.80
  6. Step 6: Final answer
    x = 324,560,476.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.