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Finding the Third Proportional to 18,039,970.69 and 39,336,111

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Solution

The third proportional to 18,039,970.69 and 39,336,111 is: 85,772,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039,970.69 : 39,336,111 = 39,336,111 : x
  2. Step 2: Convert to fraction form
    18,039,970.69/39,336,111 = 39,336,111/x
  3. Step 3: Cross multiply
    18,039,970.69x = 39,336,111 × 39,336,111
  4. Step 4: Simplify right side
    18,039,970.69x = 1,547,329,628,604,321
  5. Step 5: Solve for x
    x = 1,547,329,628,604,321/18,039,970.69
  6. Step 6: Final answer
    x = 85,772,291.73

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.