Home / 20,414,468.40-30,621,702.60-8,289,740.40

Finding the Fourth Proportional to 20,414,468.40, 30,621,702.60 and 8,289,740.40

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Solution

The fourth proportional to 20,414,468.40, 30,621,702.60 and 8,289,740.40 is: 12,434,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,468.40 : 30,621,702.60 = 8,289,740.40 : x
  2. Step 2: Convert to fraction form
    20,414,468.40/30,621,702.60 = 8,289,740.40/x
  3. Step 3: Cross multiply
    20,414,468.40x = 30,621,702.60 × 8,289,740.40
  4. Step 4: Simplify right side
    20,414,468.40x = 253,845,965,160,005.06
  5. Step 5: Solve for x
    x = 253,845,965,160,005.06/20,414,468.40
  6. Step 6: Final answer
    x = 12,434,610.60

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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.