Home / 20,857,543.10-31,286,314.65-20,101,715.90

Finding the Fourth Proportional to 20,857,543.10, 31,286,314.65 and 20,101,715.90

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Solution

The fourth proportional to 20,857,543.10, 31,286,314.65 and 20,101,715.90 is: 30,152,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,543.10 : 31,286,314.65 = 20,101,715.90 : x
  2. Step 2: Convert to fraction form
    20,857,543.10/31,286,314.65 = 20,101,715.90/x
  3. Step 3: Cross multiply
    20,857,543.10x = 31,286,314.65 × 20,101,715.90
  4. Step 4: Simplify right side
    20,857,543.10x = 628,908,608,652,307.88
  5. Step 5: Solve for x
    x = 628,908,608,652,307.88/20,857,543.10
  6. Step 6: Final answer
    x = 30,152,573.85

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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.