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Finding the Third Proportional to 15,671,552 and 21,281,578

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Solution

The third proportional to 15,671,552 and 21,281,578 is: 28,899,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671,552 : 21,281,578 = 21,281,578 : x
  2. Step 2: Convert to fraction form
    15,671,552/21,281,578 = 21,281,578/x
  3. Step 3: Cross multiply
    15,671,552x = 21,281,578 × 21,281,578
  4. Step 4: Simplify right side
    15,671,552x = 452,905,562,170,084
  5. Step 5: Solve for x
    x = 452,905,562,170,084/15,671,552
  6. Step 6: Final answer
    x = 28,899,853.84

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.