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Finding the Third Proportional to 7,036,780 and 15,369,128

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Solution

The third proportional to 7,036,780 and 15,369,128 is: 33,567,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,036,780 : 15,369,128 = 15,369,128 : x
  2. Step 2: Convert to fraction form
    7,036,780/15,369,128 = 15,369,128/x
  3. Step 3: Cross multiply
    7,036,780x = 15,369,128 × 15,369,128
  4. Step 4: Simplify right side
    7,036,780x = 236,210,095,480,384
  5. Step 5: Solve for x
    x = 236,210,095,480,384/7,036,780
  6. Step 6: Final answer
    x = 33,567,923.89

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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.