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Finding the Third Proportional to 18,787,521 and 40,035,417

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Solution

The third proportional to 18,787,521 and 40,035,417 is: 85,313,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787,521 : 40,035,417 = 40,035,417 : x
  2. Step 2: Convert to fraction form
    18,787,521/40,035,417 = 40,035,417/x
  3. Step 3: Cross multiply
    18,787,521x = 40,035,417 × 40,035,417
  4. Step 4: Simplify right side
    18,787,521x = 1,602,834,614,363,889
  5. Step 5: Solve for x
    x = 1,602,834,614,363,889/18,787,521
  6. Step 6: Final answer
    x = 85,313,789.64

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.