Home / 12,892,336.62-19,340,708.13-5,315,160.30

Finding the Fourth Proportional to 12,892,336.62, 19,340,708.13 and 5,315,160.30

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Solution

The fourth proportional to 12,892,336.62, 19,340,708.13 and 5,315,160.30 is: 7,973,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,336.62 : 19,340,708.13 = 5,315,160.30 : x
  2. Step 2: Convert to fraction form
    12,892,336.62/19,340,708.13 = 5,315,160.30/x
  3. Step 3: Cross multiply
    12,892,336.62x = 19,340,708.13 × 5,315,160.30
  4. Step 4: Simplify right side
    12,892,336.62x = 102,798,964,026,463.23
  5. Step 5: Solve for x
    x = 102,798,964,026,463.23/12,892,336.62
  6. Step 6: Final answer
    x = 7,973,648.77

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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.