Home / 7,159,060.80-9,879,505.47-3,939,796.80

Finding the Fourth Proportional to 7,159,060.80, 9,879,505.47 and 3,939,796.80

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Solution

The fourth proportional to 7,159,060.80, 9,879,505.47 and 3,939,796.80 is: 5,436,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159,060.80 : 9,879,505.47 = 3,939,796.80 : x
  2. Step 2: Convert to fraction form
    7,159,060.80/9,879,505.47 = 3,939,796.80/x
  3. Step 3: Cross multiply
    7,159,060.80x = 9,879,505.47 × 3,939,796.80
  4. Step 4: Simplify right side
    7,159,060.80x = 38,923,244,036,288.50
  5. Step 5: Solve for x
    x = 38,923,244,036,288.50/7,159,060.80
  6. Step 6: Final answer
    x = 5,436,920.45

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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.