Home / 648,592,711.97-972,915,973.92-188,530,881.21

Finding the Fourth Proportional to 648,592,711.97, 972,915,973.92 and 188,530,881.21

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Solution

The fourth proportional to 648,592,711.97, 972,915,973.92 and 188,530,881.21 is: 282,804,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,592,711.97 : 972,915,973.92 = 188,530,881.21 : x
  2. Step 2: Convert to fraction form
    648,592,711.97/972,915,973.92 = 188,530,881.21/x
  3. Step 3: Cross multiply
    648,592,711.97x = 972,915,973.92 × 188,530,881.21
  4. Step 4: Simplify right side
    648,592,711.97x = 183,424,705,906,422,976
  5. Step 5: Solve for x
    x = 183,424,705,906,422,976/648,592,711.97
  6. Step 6: Final answer
    x = 282,804,142.76

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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.