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Finding the Third Proportional to 20,887,200 and 31,931,280

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Solution

The third proportional to 20,887,200 and 31,931,280 is: 48,814,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887,200 : 31,931,280 = 31,931,280 : x
  2. Step 2: Convert to fraction form
    20,887,200/31,931,280 = 31,931,280/x
  3. Step 3: Cross multiply
    20,887,200x = 31,931,280 × 31,931,280
  4. Step 4: Simplify right side
    20,887,200x = 1,019,606,642,438,400
  5. Step 5: Solve for x
    x = 1,019,606,642,438,400/20,887,200
  6. Step 6: Final answer
    x = 48,814,903.02

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.