Home / 127,792,718.82-191,859,188.76-86,432,535.54

Finding the Fourth Proportional to 127,792,718.82, 191,859,188.76 and 86,432,535.54

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Solution

The fourth proportional to 127,792,718.82, 191,859,188.76 and 86,432,535.54 is: 129,763,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,792,718.82 : 191,859,188.76 = 86,432,535.54 : x
  2. Step 2: Convert to fraction form
    127,792,718.82/191,859,188.76 = 86,432,535.54/x
  3. Step 3: Cross multiply
    127,792,718.82x = 191,859,188.76 × 86,432,535.54
  4. Step 4: Simplify right side
    127,792,718.82x = 16,582,876,151,174,268
  5. Step 5: Solve for x
    x = 16,582,876,151,174,268/127,792,718.82
  6. Step 6: Final answer
    x = 129,763,857.47

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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.