Home / 421,021,161.69-580,979,707.88-244,796,654.67

Finding the Fourth Proportional to 421,021,161.69, 580,979,707.88 and 244,796,654.67

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Solution

The fourth proportional to 421,021,161.69, 580,979,707.88 and 244,796,654.67 is: 337,802,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,021,161.69 : 580,979,707.88 = 244,796,654.67 : x
  2. Step 2: Convert to fraction form
    421,021,161.69/580,979,707.88 = 244,796,654.67/x
  3. Step 3: Cross multiply
    421,021,161.69x = 580,979,707.88 × 244,796,654.67
  4. Step 4: Simplify right side
    421,021,161.69x = 142,221,888,918,953,840
  5. Step 5: Solve for x
    x = 142,221,888,918,953,840/421,021,161.69
  6. Step 6: Final answer
    x = 337,802,233.85

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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.