Home / 15,344,139.19-21,174,807.90-8,468,621.23

Finding the Fourth Proportional to 15,344,139.19, 21,174,807.90 and 8,468,621.23

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Solution

The fourth proportional to 15,344,139.19, 21,174,807.90 and 8,468,621.23 is: 11,686,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344,139.19 : 21,174,807.90 = 8,468,621.23 : x
  2. Step 2: Convert to fraction form
    15,344,139.19/21,174,807.90 = 8,468,621.23/x
  3. Step 3: Cross multiply
    15,344,139.19x = 21,174,807.90 × 8,468,621.23
  4. Step 4: Simplify right side
    15,344,139.19x = 179,321,427,723,111.72
  5. Step 5: Solve for x
    x = 179,321,427,723,111.72/15,344,139.19
  6. Step 6: Final answer
    x = 11,686,639.80

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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.