Home / 78,558,964.20-117,838,446.30-49,837,530.60

Finding the Fourth Proportional to 78,558,964.20, 117,838,446.30 and 49,837,530.60

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Solution

The fourth proportional to 78,558,964.20, 117,838,446.30 and 49,837,530.60 is: 74,756,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558,964.20 : 117,838,446.30 = 49,837,530.60 : x
  2. Step 2: Convert to fraction form
    78,558,964.20/117,838,446.30 = 49,837,530.60/x
  3. Step 3: Cross multiply
    78,558,964.20x = 117,838,446.30 × 49,837,530.60
  4. Step 4: Simplify right side
    78,558,964.20x = 5,872,777,173,332,707
  5. Step 5: Solve for x
    x = 5,872,777,173,332,707/78,558,964.20
  6. Step 6: Final answer
    x = 74,756,295.90

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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.