Home / 10,125,201.65-13,972,815.31-5,478,986.72

Finding the Fourth Proportional to 10,125,201.65, 13,972,815.31 and 5,478,986.72

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Solution

The fourth proportional to 10,125,201.65, 13,972,815.31 and 5,478,986.72 is: 7,561,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125,201.65 : 13,972,815.31 = 5,478,986.72 : x
  2. Step 2: Convert to fraction form
    10,125,201.65/13,972,815.31 = 5,478,986.72/x
  3. Step 3: Cross multiply
    10,125,201.65x = 13,972,815.31 × 5,478,986.72
  4. Step 4: Simplify right side
    10,125,201.65x = 76,556,869,477,413.27
  5. Step 5: Solve for x
    x = 76,556,869,477,413.27/10,125,201.65
  6. Step 6: Final answer
    x = 7,561,021.71

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1.5x scale

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.