Home / 253,231,762.60-379,847,643.90-212,417,093.80

Finding the Fourth Proportional to 253,231,762.60, 379,847,643.90 and 212,417,093.80

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Solution

The fourth proportional to 253,231,762.60, 379,847,643.90 and 212,417,093.80 is: 318,625,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,231,762.60 : 379,847,643.90 = 212,417,093.80 : x
  2. Step 2: Convert to fraction form
    253,231,762.60/379,847,643.90 = 212,417,093.80/x
  3. Step 3: Cross multiply
    253,231,762.60x = 379,847,643.90 × 212,417,093.80
  4. Step 4: Simplify right side
    253,231,762.60x = 80,686,132,604,015,296
  5. Step 5: Solve for x
    x = 80,686,132,604,015,296/253,231,762.60
  6. Step 6: Final answer
    x = 318,625,640.70

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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.