Home / 318,126,420.30-477,184,828.59-143,125,874.61

Finding the Fourth Proportional to 318,126,420.30, 477,184,828.59 and 143,125,874.61

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Solution

The fourth proportional to 318,126,420.30, 477,184,828.59 and 143,125,874.61 is: 214,686,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,126,420.30 : 477,184,828.59 = 143,125,874.61 : x
  2. Step 2: Convert to fraction form
    318,126,420.30/477,184,828.59 = 143,125,874.61/x
  3. Step 3: Cross multiply
    318,126,420.30x = 477,184,828.59 × 143,125,874.61
  4. Step 4: Simplify right side
    318,126,420.30x = 68,297,495,940,777,232
  5. Step 5: Solve for x
    x = 68,297,495,940,777,232/318,126,420.30
  6. Step 6: Final answer
    x = 214,686,651.54

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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.