Home / 25,647,815.60-38,387,742.60-19,937,121.20

Finding the Fourth Proportional to 25,647,815.60, 38,387,742.60 and 19,937,121.20

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Solution

The fourth proportional to 25,647,815.60, 38,387,742.60 and 19,937,121.20 is: 29,840,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647,815.60 : 38,387,742.60 = 19,937,121.20 : x
  2. Step 2: Convert to fraction form
    25,647,815.60/38,387,742.60 = 19,937,121.20/x
  3. Step 3: Cross multiply
    25,647,815.60x = 38,387,742.60 × 19,937,121.20
  4. Step 4: Simplify right side
    25,647,815.60x = 765,341,076,810,603.12
  5. Step 5: Solve for x
    x = 765,341,076,810,603.12/25,647,815.60
  6. Step 6: Final answer
    x = 29,840,400.01

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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.