Home / 355,902,977.20-533,854,465.80-279,461,786.80

Finding the Fourth Proportional to 355,902,977.20, 533,854,465.80 and 279,461,786.80

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Solution

The fourth proportional to 355,902,977.20, 533,854,465.80 and 279,461,786.80 is: 419,192,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,902,977.20 : 533,854,465.80 = 279,461,786.80 : x
  2. Step 2: Convert to fraction form
    355,902,977.20/533,854,465.80 = 279,461,786.80/x
  3. Step 3: Cross multiply
    355,902,977.20x = 533,854,465.80 × 279,461,786.80
  4. Step 4: Simplify right side
    355,902,977.20x = 149,191,922,903,627,488
  5. Step 5: Solve for x
    x = 149,191,922,903,627,488/355,902,977.20
  6. Step 6: Final answer
    x = 419,192,680.20

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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.