Home / 20,940,095.80-28,897,330.93-11,772,738.55

Finding the Fourth Proportional to 20,940,095.80, 28,897,330.93 and 11,772,738.55

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Solution

The fourth proportional to 20,940,095.80, 28,897,330.93 and 11,772,738.55 is: 16,246,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,940,095.80 : 28,897,330.93 = 11,772,738.55 : x
  2. Step 2: Convert to fraction form
    20,940,095.80/28,897,330.93 = 11,772,738.55/x
  3. Step 3: Cross multiply
    20,940,095.80x = 28,897,330.93 × 11,772,738.55
  4. Step 4: Simplify right side
    20,940,095.80x = 340,200,721,921,182.25
  5. Step 5: Solve for x
    x = 340,200,721,921,182.25/20,940,095.80
  6. Step 6: Final answer
    x = 16,246,378.49

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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.