Home / 7,346,413.40-11,019,620.10-5,315,127.80

Finding the Fourth Proportional to 7,346,413.40, 11,019,620.10 and 5,315,127.80

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Solution

The fourth proportional to 7,346,413.40, 11,019,620.10 and 5,315,127.80 is: 7,972,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346,413.40 : 11,019,620.10 = 5,315,127.80 : x
  2. Step 2: Convert to fraction form
    7,346,413.40/11,019,620.10 = 5,315,127.80/x
  3. Step 3: Cross multiply
    7,346,413.40x = 11,019,620.10 × 5,315,127.80
  4. Step 4: Simplify right side
    7,346,413.40x = 58,570,689,138,948.77
  5. Step 5: Solve for x
    x = 58,570,689,138,948.77/7,346,413.40
  6. Step 6: Final answer
    x = 7,972,691.70

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Double scale
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Similar ratio
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1.5x scale

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.