Home / 127,152,073.20-190,728,109.80-31,413,961.20

Finding the Fourth Proportional to 127,152,073.20, 190,728,109.80 and 31,413,961.20

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Solution

The fourth proportional to 127,152,073.20, 190,728,109.80 and 31,413,961.20 is: 47,120,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,152,073.20 : 190,728,109.80 = 31,413,961.20 : x
  2. Step 2: Convert to fraction form
    127,152,073.20/190,728,109.80 = 31,413,961.20/x
  3. Step 3: Cross multiply
    127,152,073.20x = 190,728,109.80 × 31,413,961.20
  4. Step 4: Simplify right side
    127,152,073.20x = 5,991,525,441,006,540
  5. Step 5: Solve for x
    x = 5,991,525,441,006,540/127,152,073.20
  6. Step 6: Final answer
    x = 47,120,941.80

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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.