Home / 28,164,260.60-42,246,390.90-18,086,564.60

Finding the Fourth Proportional to 28,164,260.60, 42,246,390.90 and 18,086,564.60

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Solution

The fourth proportional to 28,164,260.60, 42,246,390.90 and 18,086,564.60 is: 27,129,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164,260.60 : 42,246,390.90 = 18,086,564.60 : x
  2. Step 2: Convert to fraction form
    28,164,260.60/42,246,390.90 = 18,086,564.60/x
  3. Step 3: Cross multiply
    28,164,260.60x = 42,246,390.90 × 18,086,564.60
  4. Step 4: Simplify right side
    28,164,260.60x = 764,092,078,129,702.12
  5. Step 5: Solve for x
    x = 764,092,078,129,702.12/28,164,260.60
  6. Step 6: Final answer
    x = 27,129,846.90

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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.