Home / 53,310,455.39-79,965,683.96-12,920,939.39

Finding the Fourth Proportional to 53,310,455.39, 79,965,683.96 and 12,920,939.39

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Solution

The fourth proportional to 53,310,455.39, 79,965,683.96 and 12,920,939.39 is: 19,381,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310,455.39 : 79,965,683.96 = 12,920,939.39 : x
  2. Step 2: Convert to fraction form
    53,310,455.39/79,965,683.96 = 12,920,939.39/x
  3. Step 3: Cross multiply
    53,310,455.39x = 79,965,683.96 × 12,920,939.39
  4. Step 4: Simplify right side
    53,310,455.39x = 1,033,231,755,262,622
  5. Step 5: Solve for x
    x = 1,033,231,755,262,622/53,310,455.39
  6. Step 6: Final answer
    x = 19,381,409.29

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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.