Home / 312,980,747.40-469,525,233.96-105,720,667.38

Finding the Fourth Proportional to 312,980,747.40, 469,525,233.96 and 105,720,667.38

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Solution

The fourth proportional to 312,980,747.40, 469,525,233.96 and 105,720,667.38 is: 158,599,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,980,747.40 : 469,525,233.96 = 105,720,667.38 : x
  2. Step 2: Convert to fraction form
    312,980,747.40/469,525,233.96 = 105,720,667.38/x
  3. Step 3: Cross multiply
    312,980,747.40x = 469,525,233.96 × 105,720,667.38
  4. Step 4: Simplify right side
    312,980,747.40x = 49,638,521,086,001,832
  5. Step 5: Solve for x
    x = 49,638,521,086,001,832/312,980,747.40
  6. Step 6: Final answer
    x = 158,599,279.66

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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.