Home / 78,273,498.39-108,017,621.42-43,466,187.81

Finding the Fourth Proportional to 78,273,498.39, 108,017,621.42 and 43,466,187.81

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Solution

The fourth proportional to 78,273,498.39, 108,017,621.42 and 43,466,187.81 is: 59,983,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,273,498.39 : 108,017,621.42 = 43,466,187.81 : x
  2. Step 2: Convert to fraction form
    78,273,498.39/108,017,621.42 = 43,466,187.81/x
  3. Step 3: Cross multiply
    78,273,498.39x = 108,017,621.42 × 43,466,187.81
  4. Step 4: Simplify right side
    78,273,498.39x = 4,695,114,219,213,868
  5. Step 5: Solve for x
    x = 4,695,114,219,213,868/78,273,498.39
  6. Step 6: Final answer
    x = 59,983,446.71

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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.