Home / 272,931,413.52-409,336,761.24-78,800,618.64

Finding the Fourth Proportional to 272,931,413.52, 409,336,761.24 and 78,800,618.64

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Solution

The fourth proportional to 272,931,413.52, 409,336,761.24 and 78,800,618.64 is: 118,183,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,931,413.52 : 409,336,761.24 = 78,800,618.64 : x
  2. Step 2: Convert to fraction form
    272,931,413.52/409,336,761.24 = 78,800,618.64/x
  3. Step 3: Cross multiply
    272,931,413.52x = 409,336,761.24 × 78,800,618.64
  4. Step 4: Simplify right side
    272,931,413.52x = 32,255,990,017,805,976
  5. Step 5: Solve for x
    x = 32,255,990,017,805,976/272,931,413.52
  6. Step 6: Final answer
    x = 118,183,501.13

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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.