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Finding the Third Proportional to 15,429,391 and 21,015,550

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Solution

The third proportional to 15,429,391 and 21,015,550 is: 28,624,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429,391 : 21,015,550 = 21,015,550 : x
  2. Step 2: Convert to fraction form
    15,429,391/21,015,550 = 21,015,550/x
  3. Step 3: Cross multiply
    15,429,391x = 21,015,550 × 21,015,550
  4. Step 4: Simplify right side
    15,429,391x = 441,653,341,802,500
  5. Step 5: Solve for x
    x = 441,653,341,802,500/15,429,391
  6. Step 6: Final answer
    x = 28,624,159.04

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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.