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Finding the Third Proportional to 18,623,421 and 40,709,754

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Solution

The third proportional to 18,623,421 and 40,709,754 is: 88,989,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623,421 : 40,709,754 = 40,709,754 : x
  2. Step 2: Convert to fraction form
    18,623,421/40,709,754 = 40,709,754/x
  3. Step 3: Cross multiply
    18,623,421x = 40,709,754 × 40,709,754
  4. Step 4: Simplify right side
    18,623,421x = 1,657,284,070,740,516
  5. Step 5: Solve for x
    x = 1,657,284,070,740,516/18,623,421
  6. Step 6: Final answer
    x = 88,989,239.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.