Home / 76,602,474.80-115,010,000.40-47,904,660.80

Finding the Fourth Proportional to 76,602,474.80, 115,010,000.40 and 47,904,660.80

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Solution

The fourth proportional to 76,602,474.80, 115,010,000.40 and 47,904,660.80 is: 71,923,460.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,602,474.80 : 115,010,000.40 = 47,904,660.80 : x
  2. Step 2: Convert to fraction form
    76,602,474.80/115,010,000.40 = 47,904,660.80/x
  3. Step 3: Cross multiply
    76,602,474.80x = 115,010,000.40 × 47,904,660.80
  4. Step 4: Simplify right side
    76,602,474.80x = 5,509,515,057,769,864
  5. Step 5: Solve for x
    x = 5,509,515,057,769,864/76,602,474.80
  6. Step 6: Final answer
    x = 71,923,460.33

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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.