Home / 493,312,205.88-740,002,356.81-143,561,166.21

Finding the Fourth Proportional to 493,312,205.88, 740,002,356.81 and 143,561,166.21

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Solution

The fourth proportional to 493,312,205.88, 740,002,356.81 and 143,561,166.21 is: 215,351,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,312,205.88 : 740,002,356.81 = 143,561,166.21 : x
  2. Step 2: Convert to fraction form
    493,312,205.88/740,002,356.81 = 143,561,166.21/x
  3. Step 3: Cross multiply
    493,312,205.88x = 740,002,356.81 × 143,561,166.21
  4. Step 4: Simplify right side
    493,312,205.88x = 106,235,601,341,792,128
  5. Step 5: Solve for x
    x = 106,235,601,341,792,128/493,312,205.88
  6. Step 6: Final answer
    x = 215,351,657.78

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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.