Home / 20,857,546.60-31,286,319.90-20,101,719.40

Finding the Fourth Proportional to 20,857,546.60, 31,286,319.90 and 20,101,719.40

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Solution

The fourth proportional to 20,857,546.60, 31,286,319.90 and 20,101,719.40 is: 30,152,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,546.60 : 31,286,319.90 = 20,101,719.40 : x
  2. Step 2: Convert to fraction form
    20,857,546.60/31,286,319.90 = 20,101,719.40/x
  3. Step 3: Cross multiply
    20,857,546.60x = 31,286,319.90 × 20,101,719.40
  4. Step 4: Simplify right side
    20,857,546.60x = 628,908,823,688,436
  5. Step 5: Solve for x
    x = 628,908,823,688,436/20,857,546.60
  6. Step 6: Final answer
    x = 30,152,579.10

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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.