Home / 346,491,961.88-478,158,905.11-189,855,705.84

Finding the Fourth Proportional to 346,491,961.88, 478,158,905.11 and 189,855,705.84

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Solution

The fourth proportional to 346,491,961.88, 478,158,905.11 and 189,855,705.84 is: 262,000,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,491,961.88 : 478,158,905.11 = 189,855,705.84 : x
  2. Step 2: Convert to fraction form
    346,491,961.88/478,158,905.11 = 189,855,705.84/x
  3. Step 3: Cross multiply
    346,491,961.88x = 478,158,905.11 × 189,855,705.84
  4. Step 4: Simplify right side
    346,491,961.88x = 90,781,196,431,429,824
  5. Step 5: Solve for x
    x = 90,781,196,431,429,824/346,491,961.88
  6. Step 6: Final answer
    x = 262,000,872.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.