Home / 78,733,195.70-118,099,793.55-38,422,411.70

Finding the Fourth Proportional to 78,733,195.70, 118,099,793.55 and 38,422,411.70

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Solution

The fourth proportional to 78,733,195.70, 118,099,793.55 and 38,422,411.70 is: 57,633,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733,195.70 : 118,099,793.55 = 38,422,411.70 : x
  2. Step 2: Convert to fraction form
    78,733,195.70/118,099,793.55 = 38,422,411.70/x
  3. Step 3: Cross multiply
    78,733,195.70x = 118,099,793.55 × 38,422,411.70
  4. Step 4: Simplify right side
    78,733,195.70x = 4,537,678,889,463,105
  5. Step 5: Solve for x
    x = 4,537,678,889,463,105/78,733,195.70
  6. Step 6: Final answer
    x = 57,633,617.55

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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.