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Finding the Third Proportional to 4,540,382 and 9,877,921

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Solution

The third proportional to 4,540,382 and 9,877,921 is: 21,490,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540,382 : 9,877,921 = 9,877,921 : x
  2. Step 2: Convert to fraction form
    4,540,382/9,877,921 = 9,877,921/x
  3. Step 3: Cross multiply
    4,540,382x = 9,877,921 × 9,877,921
  4. Step 4: Simplify right side
    4,540,382x = 97,573,323,282,241
  5. Step 5: Solve for x
    x = 97,573,323,282,241/4,540,382
  6. Step 6: Final answer
    x = 21,490,113.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.