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Finding the Third Proportional to 10,913,688 and 18,188,388

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Solution

The third proportional to 10,913,688 and 18,188,388 is: 30,312,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913,688 : 18,188,388 = 18,188,388 : x
  2. Step 2: Convert to fraction form
    10,913,688/18,188,388 = 18,188,388/x
  3. Step 3: Cross multiply
    10,913,688x = 18,188,388 × 18,188,388
  4. Step 4: Simplify right side
    10,913,688x = 330,817,458,038,544
  5. Step 5: Solve for x
    x = 330,817,458,038,544/10,913,688
  6. Step 6: Final answer
    x = 30,312,160.11

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These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.