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Finding the Third Proportional to 15,167,688 and 21,461,813

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Solution

The third proportional to 15,167,688 and 21,461,813 is: 30,367,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,688 : 21,461,813 = 21,461,813 : x
  2. Step 2: Convert to fraction form
    15,167,688/21,461,813 = 21,461,813/x
  3. Step 3: Cross multiply
    15,167,688x = 21,461,813 × 21,461,813
  4. Step 4: Simplify right side
    15,167,688x = 460,609,417,246,969
  5. Step 5: Solve for x
    x = 460,609,417,246,969/15,167,688
  6. Step 6: Final answer
    x = 30,367,806.70

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.