Home / 20,710,580.19-28,580,632.16-11,543,026.11

Finding the Fourth Proportional to 20,710,580.19, 28,580,632.16 and 11,543,026.11

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Solution

The fourth proportional to 20,710,580.19, 28,580,632.16 and 11,543,026.11 is: 15,929,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,580.19 : 28,580,632.16 = 11,543,026.11 : x
  2. Step 2: Convert to fraction form
    20,710,580.19/28,580,632.16 = 11,543,026.11/x
  3. Step 3: Cross multiply
    20,710,580.19x = 28,580,632.16 × 11,543,026.11
  4. Step 4: Simplify right side
    20,710,580.19x = 329,906,983,205,470.56
  5. Step 5: Solve for x
    x = 329,906,983,205,470.56/20,710,580.19
  6. Step 6: Final answer
    x = 15,929,393.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.