Home / 78,521,613.85-117,795,208.58-23,195,062.81

Finding the Fourth Proportional to 78,521,613.85, 117,795,208.58 and 23,195,062.81

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Solution

The fourth proportional to 78,521,613.85, 117,795,208.58 and 23,195,062.81 is: 34,796,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521,613.85 : 117,795,208.58 = 23,195,062.81 : x
  2. Step 2: Convert to fraction form
    78,521,613.85/117,795,208.58 = 23,195,062.81/x
  3. Step 3: Cross multiply
    78,521,613.85x = 117,795,208.58 × 23,195,062.81
  4. Step 4: Simplify right side
    78,521,613.85x = 2,732,267,261,672,163
  5. Step 5: Solve for x
    x = 2,732,267,261,672,163/78,521,613.85
  6. Step 6: Final answer
    x = 34,796,371.70

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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.