Home / 66,436,268.40-99,654,402.60-54,319,413.60

Finding the Fourth Proportional to 66,436,268.40, 99,654,402.60 and 54,319,413.60

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Solution

The fourth proportional to 66,436,268.40, 99,654,402.60 and 54,319,413.60 is: 81,479,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436,268.40 : 99,654,402.60 = 54,319,413.60 : x
  2. Step 2: Convert to fraction form
    66,436,268.40/99,654,402.60 = 54,319,413.60/x
  3. Step 3: Cross multiply
    66,436,268.40x = 99,654,402.60 × 54,319,413.60
  4. Step 4: Simplify right side
    66,436,268.40x = 5,413,168,711,890,315
  5. Step 5: Solve for x
    x = 5,413,168,711,890,315/66,436,268.40
  6. Step 6: Final answer
    x = 81,479,120.40

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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.