Home / 10,502,804.70-15,754,699.62-5,105,020.86

Finding the Fourth Proportional to 10,502,804.70, 15,754,699.62 and 5,105,020.86

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Solution

The fourth proportional to 10,502,804.70, 15,754,699.62 and 5,105,020.86 is: 7,657,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,804.70 : 15,754,699.62 = 5,105,020.86 : x
  2. Step 2: Convert to fraction form
    10,502,804.70/15,754,699.62 = 5,105,020.86/x
  3. Step 3: Cross multiply
    10,502,804.70x = 15,754,699.62 × 5,105,020.86
  4. Step 4: Simplify right side
    10,502,804.70x = 80,428,070,203,134.08
  5. Step 5: Solve for x
    x = 80,428,070,203,134.08/10,502,804.70
  6. Step 6: Final answer
    x = 7,657,770.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.