Home / 543,204,016.31-749,639,649.33-305,091,161.84

Finding the Fourth Proportional to 543,204,016.31, 749,639,649.33 and 305,091,161.84

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Solution

The fourth proportional to 543,204,016.31, 749,639,649.33 and 305,091,161.84 is: 421,035,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,204,016.31 : 749,639,649.33 = 305,091,161.84 : x
  2. Step 2: Convert to fraction form
    543,204,016.31/749,639,649.33 = 305,091,161.84/x
  3. Step 3: Cross multiply
    543,204,016.31x = 749,639,649.33 × 305,091,161.84
  4. Step 4: Simplify right side
    543,204,016.31x = 228,708,431,571,671,680
  5. Step 5: Solve for x
    x = 228,708,431,571,671,680/543,204,016.31
  6. Step 6: Final answer
    x = 421,035,973.05

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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.