Home / 18,781,298.20-28,171,947.30-18,403,384.60

Finding the Fourth Proportional to 18,781,298.20, 28,171,947.30 and 18,403,384.60

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Solution

The fourth proportional to 18,781,298.20, 28,171,947.30 and 18,403,384.60 is: 27,605,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,298.20 : 28,171,947.30 = 18,403,384.60 : x
  2. Step 2: Convert to fraction form
    18,781,298.20/28,171,947.30 = 18,403,384.60/x
  3. Step 3: Cross multiply
    18,781,298.20x = 28,171,947.30 × 18,403,384.60
  4. Step 4: Simplify right side
    18,781,298.20x = 518,459,181,092,831.62
  5. Step 5: Solve for x
    x = 518,459,181,092,831.62/18,781,298.20
  6. Step 6: Final answer
    x = 27,605,076.90

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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.