Home / 324,663,415.11-486,988,299.74-79,021,420.40

Finding the Fourth Proportional to 324,663,415.11, 486,988,299.74 and 79,021,420.40

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Solution

The fourth proportional to 324,663,415.11, 486,988,299.74 and 79,021,420.40 is: 118,530,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,663,415.11 : 486,988,299.74 = 79,021,420.40 : x
  2. Step 2: Convert to fraction form
    324,663,415.11/486,988,299.74 = 79,021,420.40/x
  3. Step 3: Cross multiply
    324,663,415.11x = 486,988,299.74 × 79,021,420.40
  4. Step 4: Simplify right side
    324,663,415.11x = 38,482,507,161,250,592
  5. Step 5: Solve for x
    x = 38,482,507,161,250,592/324,663,415.11
  6. Step 6: Final answer
    x = 118,530,469.93

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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.