Home / 78,079,796.73-116,421,640.11-75,934,606.91

Finding the Fourth Proportional to 78,079,796.73, 116,421,640.11 and 75,934,606.91

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Solution

The fourth proportional to 78,079,796.73, 116,421,640.11 and 75,934,606.91 is: 113,223,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,796.73 : 116,421,640.11 = 75,934,606.91 : x
  2. Step 2: Convert to fraction form
    78,079,796.73/116,421,640.11 = 75,934,606.91/x
  3. Step 3: Cross multiply
    78,079,796.73x = 116,421,640.11 × 75,934,606.91
  4. Step 4: Simplify right side
    78,079,796.73x = 8,840,431,476,988,231
  5. Step 5: Solve for x
    x = 8,840,431,476,988,231/78,079,796.73
  6. Step 6: Final answer
    x = 113,223,033.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.