Home / 21,297,957.72-29,393,516.86-12,359,036.98

Finding the Fourth Proportional to 21,297,957.72, 29,393,516.86 and 12,359,036.98

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Solution

The fourth proportional to 21,297,957.72, 29,393,516.86 and 12,359,036.98 is: 17,056,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,957.72 : 29,393,516.86 = 12,359,036.98 : x
  2. Step 2: Convert to fraction form
    21,297,957.72/29,393,516.86 = 12,359,036.98/x
  3. Step 3: Cross multiply
    21,297,957.72x = 29,393,516.86 × 12,359,036.98
  4. Step 4: Simplify right side
    21,297,957.72x = 363,275,561,844,993.50
  5. Step 5: Solve for x
    x = 363,275,561,844,993.50/21,297,957.72
  6. Step 6: Final answer
    x = 17,056,826.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.