Home / 3,989,480.98-5,501,746.65-3,176,368.78

Finding the Fourth Proportional to 3,989,480.98, 5,501,746.65 and 3,176,368.78

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Solution

The fourth proportional to 3,989,480.98, 5,501,746.65 and 3,176,368.78 is: 4,380,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,480.98 : 5,501,746.65 = 3,176,368.78 : x
  2. Step 2: Convert to fraction form
    3,989,480.98/5,501,746.65 = 3,176,368.78/x
  3. Step 3: Cross multiply
    3,989,480.98x = 5,501,746.65 × 3,176,368.78
  4. Step 4: Simplify right side
    3,989,480.98x = 17,475,576,294,529.59
  5. Step 5: Solve for x
    x = 17,475,576,294,529.59/3,989,480.98
  6. Step 6: Final answer
    x = 4,380,413.49

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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.