Home / 30,222,016.70-45,333,025.05-21,781,946.30

Finding the Fourth Proportional to 30,222,016.70, 45,333,025.05 and 21,781,946.30

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Solution

The fourth proportional to 30,222,016.70, 45,333,025.05 and 21,781,946.30 is: 32,672,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222,016.70 : 45,333,025.05 = 21,781,946.30 : x
  2. Step 2: Convert to fraction form
    30,222,016.70/45,333,025.05 = 21,781,946.30/x
  3. Step 3: Cross multiply
    30,222,016.70x = 45,333,025.05 × 21,781,946.30
  4. Step 4: Simplify right side
    30,222,016.70x = 987,441,517,255,654.75
  5. Step 5: Solve for x
    x = 987,441,517,255,654.75/30,222,016.70
  6. Step 6: Final answer
    x = 32,672,919.45

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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.