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Finding the Third Proportional to 18,150,072 and 28,117,440

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Solution

The third proportional to 18,150,072 and 28,117,440 is: 43,558,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150,072 : 28,117,440 = 28,117,440 : x
  2. Step 2: Convert to fraction form
    18,150,072/28,117,440 = 28,117,440/x
  3. Step 3: Cross multiply
    18,150,072x = 28,117,440 × 28,117,440
  4. Step 4: Simplify right side
    18,150,072x = 790,590,432,153,600
  5. Step 5: Solve for x
    x = 790,590,432,153,600/18,150,072
  6. Step 6: Final answer
    x = 43,558,528.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.