Home / 18,741,813.24-28,114,994.74-5,278,641.24

Finding the Fourth Proportional to 18,741,813.24, 28,114,994.74 and 5,278,641.24

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Solution

The fourth proportional to 18,741,813.24, 28,114,994.74 and 5,278,641.24 is: 7,918,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741,813.24 : 28,114,994.74 = 5,278,641.24 : x
  2. Step 2: Convert to fraction form
    18,741,813.24/28,114,994.74 = 5,278,641.24/x
  3. Step 3: Cross multiply
    18,741,813.24x = 28,114,994.74 × 5,278,641.24
  4. Step 4: Simplify right side
    18,741,813.24x = 148,408,970,696,947.06
  5. Step 5: Solve for x
    x = 148,408,970,696,947.06/18,741,813.24
  6. Step 6: Final answer
    x = 7,918,602.58

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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.