Home / 21,042,004.23-29,042,807.02-12,342,979.36

Finding the Fourth Proportional to 21,042,004.23, 29,042,807.02 and 12,342,979.36

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Solution

The fourth proportional to 21,042,004.23, 29,042,807.02 and 12,342,979.36 is: 17,036,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,004.23 : 29,042,807.02 = 12,342,979.36 : x
  2. Step 2: Convert to fraction form
    21,042,004.23/29,042,807.02 = 12,342,979.36/x
  3. Step 3: Cross multiply
    21,042,004.23x = 29,042,807.02 × 12,342,979.36
  4. Step 4: Simplify right side
    21,042,004.23x = 358,474,767,679,198.44
  5. Step 5: Solve for x
    x = 358,474,767,679,198.44/21,042,004.23
  6. Step 6: Final answer
    x = 17,036,151.30

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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.