Home / 18,814,994.91-28,222,437.47-5,168,154.32

Finding the Fourth Proportional to 18,814,994.91, 28,222,437.47 and 5,168,154.32

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Solution

The fourth proportional to 18,814,994.91, 28,222,437.47 and 5,168,154.32 is: 7,752,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814,994.91 : 28,222,437.47 = 5,168,154.32 : x
  2. Step 2: Convert to fraction form
    18,814,994.91/28,222,437.47 = 5,168,154.32/x
  3. Step 3: Cross multiply
    18,814,994.91x = 28,222,437.47 × 5,168,154.32
  4. Step 4: Simplify right side
    18,814,994.91x = 145,857,912,236,414.34
  5. Step 5: Solve for x
    x = 145,857,912,236,414.34/18,814,994.91
  6. Step 6: Final answer
    x = 7,752,216.41

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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.