Home / 18,905,113.20-28,357,669.80-9,325,081.20

Finding the Fourth Proportional to 18,905,113.20, 28,357,669.80 and 9,325,081.20

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Solution

The fourth proportional to 18,905,113.20, 28,357,669.80 and 9,325,081.20 is: 13,987,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905,113.20 : 28,357,669.80 = 9,325,081.20 : x
  2. Step 2: Convert to fraction form
    18,905,113.20/28,357,669.80 = 9,325,081.20/x
  3. Step 3: Cross multiply
    18,905,113.20x = 28,357,669.80 × 9,325,081.20
  4. Step 4: Simplify right side
    18,905,113.20x = 264,437,573,527,787.75
  5. Step 5: Solve for x
    x = 264,437,573,527,787.75/18,905,113.20
  6. Step 6: Final answer
    x = 13,987,621.80

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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.