Home / 28,105,620.17-38,782,769.85-15,544,678.79

Finding the Fourth Proportional to 28,105,620.17, 38,782,769.85 and 15,544,678.79

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Solution

The fourth proportional to 28,105,620.17, 38,782,769.85 and 15,544,678.79 is: 21,450,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105,620.17 : 38,782,769.85 = 15,544,678.79 : x
  2. Step 2: Convert to fraction form
    28,105,620.17/38,782,769.85 = 15,544,678.79/x
  3. Step 3: Cross multiply
    28,105,620.17x = 38,782,769.85 × 15,544,678.79
  4. Step 4: Simplify right side
    28,105,620.17x = 602,865,699,936,319.12
  5. Step 5: Solve for x
    x = 602,865,699,936,319.12/28,105,620.17
  6. Step 6: Final answer
    x = 21,450,005.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.