Home / 20,310,719.28-30,473,662.98-8,183,623.14

Finding the Fourth Proportional to 20,310,719.28, 30,473,662.98 and 8,183,623.14

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Solution

The fourth proportional to 20,310,719.28, 30,473,662.98 and 8,183,623.14 is: 12,278,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,719.28 : 30,473,662.98 = 8,183,623.14 : x
  2. Step 2: Convert to fraction form
    20,310,719.28/30,473,662.98 = 8,183,623.14/x
  3. Step 3: Cross multiply
    20,310,719.28x = 30,473,662.98 × 8,183,623.14
  4. Step 4: Simplify right side
    20,310,719.28x = 249,384,973,523,689.34
  5. Step 5: Solve for x
    x = 249,384,973,523,689.34/20,310,719.28
  6. Step 6: Final answer
    x = 12,278,490.49

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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.