Home / 28,392,717.60-42,589,076.40-12,226,413.60

Finding the Fourth Proportional to 28,392,717.60, 42,589,076.40 and 12,226,413.60

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Solution

The fourth proportional to 28,392,717.60, 42,589,076.40 and 12,226,413.60 is: 18,339,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392,717.60 : 42,589,076.40 = 12,226,413.60 : x
  2. Step 2: Convert to fraction form
    28,392,717.60/42,589,076.40 = 12,226,413.60/x
  3. Step 3: Cross multiply
    28,392,717.60x = 42,589,076.40 × 12,226,413.60
  4. Step 4: Simplify right side
    28,392,717.60x = 520,711,662,908,399
  5. Step 5: Solve for x
    x = 520,711,662,908,399/28,392,717.60
  6. Step 6: Final answer
    x = 18,339,620.40

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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.