Home / 128,313,004.80-192,044,354.40-118,109,337.60

Finding the Fourth Proportional to 128,313,004.80, 192,044,354.40 and 118,109,337.60

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Solution

The fourth proportional to 128,313,004.80, 192,044,354.40 and 118,109,337.60 is: 176,772,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,313,004.80 : 192,044,354.40 = 118,109,337.60 : x
  2. Step 2: Convert to fraction form
    128,313,004.80/192,044,354.40 = 118,109,337.60/x
  3. Step 3: Cross multiply
    128,313,004.80x = 192,044,354.40 × 118,109,337.60
  4. Step 4: Simplify right side
    128,313,004.80x = 22,682,231,488,003,644
  5. Step 5: Solve for x
    x = 22,682,231,488,003,644/128,313,004.80
  6. Step 6: Final answer
    x = 176,772,662.47

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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.