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Finding the Third Proportional to 21,421,800 and 47,094,600

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Solution

The third proportional to 21,421,800 and 47,094,600 is: 103,534,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421,800 : 47,094,600 = 47,094,600 : x
  2. Step 2: Convert to fraction form
    21,421,800/47,094,600 = 47,094,600/x
  3. Step 3: Cross multiply
    21,421,800x = 47,094,600 × 47,094,600
  4. Step 4: Simplify right side
    21,421,800x = 2,217,901,349,160,000
  5. Step 5: Solve for x
    x = 2,217,901,349,160,000/21,421,800
  6. Step 6: Final answer
    x = 103,534,779.95

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.