Home / 12,557,079.40-18,835,619.10-6,171,428.20

Finding the Fourth Proportional to 12,557,079.40, 18,835,619.10 and 6,171,428.20

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Solution

The fourth proportional to 12,557,079.40, 18,835,619.10 and 6,171,428.20 is: 9,257,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557,079.40 : 18,835,619.10 = 6,171,428.20 : x
  2. Step 2: Convert to fraction form
    12,557,079.40/18,835,619.10 = 6,171,428.20/x
  3. Step 3: Cross multiply
    12,557,079.40x = 18,835,619.10 × 6,171,428.20
  4. Step 4: Simplify right side
    12,557,079.40x = 116,242,670,878,198.62
  5. Step 5: Solve for x
    x = 116,242,670,878,198.62/12,557,079.40
  6. Step 6: Final answer
    x = 9,257,142.30

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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.