Home / 20,190,460.40-30,285,690.60-18,006,959.60

Finding the Fourth Proportional to 20,190,460.40, 30,285,690.60 and 18,006,959.60

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Solution

The fourth proportional to 20,190,460.40, 30,285,690.60 and 18,006,959.60 is: 27,010,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,460.40 : 30,285,690.60 = 18,006,959.60 : x
  2. Step 2: Convert to fraction form
    20,190,460.40/30,285,690.60 = 18,006,959.60/x
  3. Step 3: Cross multiply
    20,190,460.40x = 30,285,690.60 × 18,006,959.60
  4. Step 4: Simplify right side
    20,190,460.40x = 545,353,207,092,299.81
  5. Step 5: Solve for x
    x = 545,353,207,092,299.81/20,190,460.40
  6. Step 6: Final answer
    x = 27,010,439.40

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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.