Home / 127,254,309.30-190,616,625.82-80,966,891.70

Finding the Fourth Proportional to 127,254,309.30, 190,616,625.82 and 80,966,891.70

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Solution

The fourth proportional to 127,254,309.30, 190,616,625.82 and 80,966,891.70 is: 121,281,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,254,309.30 : 190,616,625.82 = 80,966,891.70 : x
  2. Step 2: Convert to fraction form
    127,254,309.30/190,616,625.82 = 80,966,891.70/x
  3. Step 3: Cross multiply
    127,254,309.30x = 190,616,625.82 × 80,966,891.70
  4. Step 4: Simplify right side
    127,254,309.30x = 15,433,635,698,987,364
  5. Step 5: Solve for x
    x = 15,433,635,698,987,364/127,254,309.30
  6. Step 6: Final answer
    x = 121,281,831.51

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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.