Home / 356,339,810.20-534,509,715.30-313,257,659.80

Finding the Fourth Proportional to 356,339,810.20, 534,509,715.30 and 313,257,659.80

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Solution

The fourth proportional to 356,339,810.20, 534,509,715.30 and 313,257,659.80 is: 469,886,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,339,810.20 : 534,509,715.30 = 313,257,659.80 : x
  2. Step 2: Convert to fraction form
    356,339,810.20/534,509,715.30 = 313,257,659.80/x
  3. Step 3: Cross multiply
    356,339,810.20x = 534,509,715.30 × 313,257,659.80
  4. Step 4: Simplify right side
    356,339,810.20x = 167,439,262,555,242,272
  5. Step 5: Solve for x
    x = 167,439,262,555,242,272/356,339,810.20
  6. Step 6: Final answer
    x = 469,886,489.70

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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.