Home / 213,587,010.96-320,412,497.76-77,304,281.04

Finding the Fourth Proportional to 213,587,010.96, 320,412,497.76 and 77,304,281.04

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Solution

The fourth proportional to 213,587,010.96, 320,412,497.76 and 77,304,281.04 is: 115,967,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,587,010.96 : 320,412,497.76 = 77,304,281.04 : x
  2. Step 2: Convert to fraction form
    213,587,010.96/320,412,497.76 = 77,304,281.04/x
  3. Step 3: Cross multiply
    213,587,010.96x = 320,412,497.76 × 77,304,281.04
  4. Step 4: Simplify right side
    213,587,010.96x = 24,769,257,775,567,412
  5. Step 5: Solve for x
    x = 24,769,257,775,567,412/213,587,010.96
  6. Step 6: Final answer
    x = 115,967,996.67

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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.