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Finding the Third Proportional to 18,607,128 and 39,423,666

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Solution

The third proportional to 18,607,128 and 39,423,666 is: 83,528,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607,128 : 39,423,666 = 39,423,666 : x
  2. Step 2: Convert to fraction form
    18,607,128/39,423,666 = 39,423,666/x
  3. Step 3: Cross multiply
    18,607,128x = 39,423,666 × 39,423,666
  4. Step 4: Simplify right side
    18,607,128x = 1,554,225,440,879,556
  5. Step 5: Solve for x
    x = 1,554,225,440,879,556/18,607,128
  6. Step 6: Final answer
    x = 83,528,497.30

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.