Home / 13,929,142.32-20,780,603.87-13,175,803.44

Finding the Fourth Proportional to 13,929,142.32, 20,780,603.87 and 13,175,803.44

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Solution

The fourth proportional to 13,929,142.32, 20,780,603.87 and 13,175,803.44 is: 19,656,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929,142.32 : 20,780,603.87 = 13,175,803.44 : x
  2. Step 2: Convert to fraction form
    13,929,142.32/20,780,603.87 = 13,175,803.44/x
  3. Step 3: Cross multiply
    13,929,142.32x = 20,780,603.87 × 13,175,803.44
  4. Step 4: Simplify right side
    13,929,142.32x = 273,801,151,889,744.25
  5. Step 5: Solve for x
    x = 273,801,151,889,744.25/13,929,142.32
  6. Step 6: Final answer
    x = 19,656,712.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.