Home / 331,808,336.70-497,712,505.05-263,280,003.90

Finding the Fourth Proportional to 331,808,336.70, 497,712,505.05 and 263,280,003.90

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Solution

The fourth proportional to 331,808,336.70, 497,712,505.05 and 263,280,003.90 is: 394,920,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,808,336.70 : 497,712,505.05 = 263,280,003.90 : x
  2. Step 2: Convert to fraction form
    331,808,336.70/497,712,505.05 = 263,280,003.90/x
  3. Step 3: Cross multiply
    331,808,336.70x = 497,712,505.05 × 263,280,003.90
  4. Step 4: Simplify right side
    331,808,336.70x = 131,037,750,270,642,768
  5. Step 5: Solve for x
    x = 131,037,750,270,642,768/331,808,336.70
  6. Step 6: Final answer
    x = 394,920,005.85

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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.