Home / 354,310,373.49-531,418,899.78-105,310,315.50

Finding the Fourth Proportional to 354,310,373.49, 531,418,899.78 and 105,310,315.50

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Solution

The fourth proportional to 354,310,373.49, 531,418,899.78 and 105,310,315.50 is: 157,951,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,310,373.49 : 531,418,899.78 = 105,310,315.50 : x
  2. Step 2: Convert to fraction form
    354,310,373.49/531,418,899.78 = 105,310,315.50/x
  3. Step 3: Cross multiply
    354,310,373.49x = 531,418,899.78 × 105,310,315.50
  4. Step 4: Simplify right side
    354,310,373.49x = 55,963,891,998,494,680
  5. Step 5: Solve for x
    x = 55,963,891,998,494,680/354,310,373.49
  6. Step 6: Final answer
    x = 157,951,604.54

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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.