Home / 412,078,413.20-618,117,619.80-105,394,528.40

Finding the Fourth Proportional to 412,078,413.20, 618,117,619.80 and 105,394,528.40

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Solution

The fourth proportional to 412,078,413.20, 618,117,619.80 and 105,394,528.40 is: 158,091,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,078,413.20 : 618,117,619.80 = 105,394,528.40 : x
  2. Step 2: Convert to fraction form
    412,078,413.20/618,117,619.80 = 105,394,528.40/x
  3. Step 3: Cross multiply
    412,078,413.20x = 618,117,619.80 × 105,394,528.40
  4. Step 4: Simplify right side
    412,078,413.20x = 65,146,215,034,551,504
  5. Step 5: Solve for x
    x = 65,146,215,034,551,504/412,078,413.20
  6. Step 6: Final answer
    x = 158,091,792.60

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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.