Home / 131,328,266.70-196,992,400.05-128,640,881.10

Finding the Fourth Proportional to 131,328,266.70, 196,992,400.05 and 128,640,881.10

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Solution

The fourth proportional to 131,328,266.70, 196,992,400.05 and 128,640,881.10 is: 192,961,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328,266.70 : 196,992,400.05 = 128,640,881.10 : x
  2. Step 2: Convert to fraction form
    131,328,266.70/196,992,400.05 = 128,640,881.10/x
  3. Step 3: Cross multiply
    131,328,266.70x = 196,992,400.05 × 128,640,881.10
  4. Step 4: Simplify right side
    131,328,266.70x = 25,341,275,912,435,684
  5. Step 5: Solve for x
    x = 25,341,275,912,435,684/131,328,266.70
  6. Step 6: Final answer
    x = 192,961,321.65

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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.