Home / 5,171,420.52-7,136,413.92-2,816,564.76

Finding the Fourth Proportional to 5,171,420.52, 7,136,413.92 and 2,816,564.76

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Solution

The fourth proportional to 5,171,420.52, 7,136,413.92 and 2,816,564.76 is: 3,886,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171,420.52 : 7,136,413.92 = 2,816,564.76 : x
  2. Step 2: Convert to fraction form
    5,171,420.52/7,136,413.92 = 2,816,564.76/x
  3. Step 3: Cross multiply
    5,171,420.52x = 7,136,413.92 × 2,816,564.76
  4. Step 4: Simplify right side
    5,171,420.52x = 20,100,171,959,845.46
  5. Step 5: Solve for x
    x = 20,100,171,959,845.46/5,171,420.52
  6. Step 6: Final answer
    x = 3,886,779.63

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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.