Home / 213,586,282.80-320,360,761.80-69,979,114.80

Finding the Fourth Proportional to 213,586,282.80, 320,360,761.80 and 69,979,114.80

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Solution

The fourth proportional to 213,586,282.80, 320,360,761.80 and 69,979,114.80 is: 104,962,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,586,282.80 : 320,360,761.80 = 69,979,114.80 : x
  2. Step 2: Convert to fraction form
    213,586,282.80/320,360,761.80 = 69,979,114.80/x
  3. Step 3: Cross multiply
    213,586,282.80x = 320,360,761.80 × 69,979,114.80
  4. Step 4: Simplify right side
    213,586,282.80x = 22,418,562,527,417,656
  5. Step 5: Solve for x
    x = 22,418,562,527,417,656/213,586,282.80
  6. Step 6: Final answer
    x = 104,962,557.68

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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.