Home / 354,324,145.80-531,486,218.70-281,144,720.10

Finding the Fourth Proportional to 354,324,145.80, 531,486,218.70 and 281,144,720.10

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Solution

The fourth proportional to 354,324,145.80, 531,486,218.70 and 281,144,720.10 is: 421,717,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,324,145.80 : 531,486,218.70 = 281,144,720.10 : x
  2. Step 2: Convert to fraction form
    354,324,145.80/531,486,218.70 = 281,144,720.10/x
  3. Step 3: Cross multiply
    354,324,145.80x = 531,486,218.70 × 281,144,720.10
  4. Step 4: Simplify right side
    354,324,145.80x = 149,424,544,193,418,880
  5. Step 5: Solve for x
    x = 149,424,544,193,418,880/354,324,145.80
  6. Step 6: Final answer
    x = 421,717,080.15

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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.