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Finding the Third Proportional to 7,139,787 and 15,415,764

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Solution

The third proportional to 7,139,787 and 15,415,764 is: 33,284,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,787 : 15,415,764 = 15,415,764 : x
  2. Step 2: Convert to fraction form
    7,139,787/15,415,764 = 15,415,764/x
  3. Step 3: Cross multiply
    7,139,787x = 15,415,764 × 15,415,764
  4. Step 4: Simplify right side
    7,139,787x = 237,645,779,703,696
  5. Step 5: Solve for x
    x = 237,645,779,703,696/7,139,787
  6. Step 6: Final answer
    x = 33,284,715.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.