Home / 12,705,703.72-19,062,113.10-5,137,983.88

Finding the Fourth Proportional to 12,705,703.72, 19,062,113.10 and 5,137,983.88

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Solution

The fourth proportional to 12,705,703.72, 19,062,113.10 and 5,137,983.88 is: 7,708,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705,703.72 : 19,062,113.10 = 5,137,983.88 : x
  2. Step 2: Convert to fraction form
    12,705,703.72/19,062,113.10 = 5,137,983.88/x
  3. Step 3: Cross multiply
    12,705,703.72x = 19,062,113.10 × 5,137,983.88
  4. Step 4: Simplify right side
    12,705,703.72x = 97,940,829,826,536.83
  5. Step 5: Solve for x
    x = 97,940,829,826,536.83/12,705,703.72
  6. Step 6: Final answer
    x = 7,708,414.42

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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.