Home / 78,732,401.05-118,098,601.58-77,456,942.65

Finding the Fourth Proportional to 78,732,401.05, 118,098,601.58 and 77,456,942.65

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Solution

The fourth proportional to 78,732,401.05, 118,098,601.58 and 77,456,942.65 is: 116,185,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,401.05 : 118,098,601.58 = 77,456,942.65 : x
  2. Step 2: Convert to fraction form
    78,732,401.05/118,098,601.58 = 77,456,942.65/x
  3. Step 3: Cross multiply
    78,732,401.05x = 118,098,601.58 × 77,456,942.65
  4. Step 4: Simplify right side
    78,732,401.05x = 9,147,556,609,239,976
  5. Step 5: Solve for x
    x = 9,147,556,609,239,976/78,732,401.05
  6. Step 6: Final answer
    x = 116,185,413.98

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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.