Home / 57,004,413.11-78,663,982.54-30,898,370.49

Finding the Fourth Proportional to 57,004,413.11, 78,663,982.54 and 30,898,370.49

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Solution

The fourth proportional to 57,004,413.11, 78,663,982.54 and 30,898,370.49 is: 42,638,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,413.11 : 78,663,982.54 = 30,898,370.49 : x
  2. Step 2: Convert to fraction form
    57,004,413.11/78,663,982.54 = 30,898,370.49/x
  3. Step 3: Cross multiply
    57,004,413.11x = 78,663,982.54 × 30,898,370.49
  4. Step 4: Simplify right side
    57,004,413.11x = 2,430,588,876,739,811.50
  5. Step 5: Solve for x
    x = 2,430,588,876,739,811.50/57,004,413.11
  6. Step 6: Final answer
    x = 42,638,608.91

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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.