Home / 53,310,477.76-79,965,717.54-12,920,961.76

Finding the Fourth Proportional to 53,310,477.76, 79,965,717.54 and 12,920,961.76

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Solution

The fourth proportional to 53,310,477.76, 79,965,717.54 and 12,920,961.76 is: 19,381,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310,477.76 : 79,965,717.54 = 12,920,961.76 : x
  2. Step 2: Convert to fraction form
    53,310,477.76/79,965,717.54 = 12,920,961.76/x
  3. Step 3: Cross multiply
    53,310,477.76x = 79,965,717.54 × 12,920,961.76
  4. Step 4: Simplify right side
    53,310,477.76x = 1,033,233,978,045,472.88
  5. Step 5: Solve for x
    x = 1,033,233,978,045,472.88/53,310,477.76
  6. Step 6: Final answer
    x = 19,381,442.85

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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.