Home / 76,966,137.22-115,434,771.63-38,617,354.66

Finding the Fourth Proportional to 76,966,137.22, 115,434,771.63 and 38,617,354.66

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Solution

The fourth proportional to 76,966,137.22, 115,434,771.63 and 38,617,354.66 is: 57,918,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966,137.22 : 115,434,771.63 = 38,617,354.66 : x
  2. Step 2: Convert to fraction form
    76,966,137.22/115,434,771.63 = 38,617,354.66/x
  3. Step 3: Cross multiply
    76,966,137.22x = 115,434,771.63 × 38,617,354.66
  4. Step 4: Simplify right side
    76,966,137.22x = 4,457,785,516,131,815.50
  5. Step 5: Solve for x
    x = 4,457,785,516,131,815.50/76,966,137.22
  6. Step 6: Final answer
    x = 57,918,789.71

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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.