Home / 20,857,810.60-31,286,715.90-20,101,983.40

Finding the Fourth Proportional to 20,857,810.60, 31,286,715.90 and 20,101,983.40

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Solution

The fourth proportional to 20,857,810.60, 31,286,715.90 and 20,101,983.40 is: 30,152,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,810.60 : 31,286,715.90 = 20,101,983.40 : x
  2. Step 2: Convert to fraction form
    20,857,810.60/31,286,715.90 = 20,101,983.40/x
  3. Step 3: Cross multiply
    20,857,810.60x = 31,286,715.90 × 20,101,983.40
  4. Step 4: Simplify right side
    20,857,810.60x = 628,925,043,662,316
  5. Step 5: Solve for x
    x = 628,925,043,662,316/20,857,810.60
  6. Step 6: Final answer
    x = 30,152,975.10

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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.