Home / 20,695,665.60-31,043,498.40-9,907,413.30

Finding the Fourth Proportional to 20,695,665.60, 31,043,498.40 and 9,907,413.30

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Solution

The fourth proportional to 20,695,665.60, 31,043,498.40 and 9,907,413.30 is: 14,861,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,665.60 : 31,043,498.40 = 9,907,413.30 : x
  2. Step 2: Convert to fraction form
    20,695,665.60/31,043,498.40 = 9,907,413.30/x
  3. Step 3: Cross multiply
    20,695,665.60x = 31,043,498.40 × 9,907,413.30
  4. Step 4: Simplify right side
    20,695,665.60x = 307,560,768,926,688.75
  5. Step 5: Solve for x
    x = 307,560,768,926,688.75/20,695,665.60
  6. Step 6: Final answer
    x = 14,861,119.95

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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.