Home / 21,094,639.70-31,643,195.23-8,140,858.27

Finding the Fourth Proportional to 21,094,639.70, 31,643,195.23 and 8,140,858.27

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Solution

The fourth proportional to 21,094,639.70, 31,643,195.23 and 8,140,858.27 is: 12,211,764.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094,639.70 : 31,643,195.23 = 8,140,858.27 : x
  2. Step 2: Convert to fraction form
    21,094,639.70/31,643,195.23 = 8,140,858.27/x
  3. Step 3: Cross multiply
    21,094,639.70x = 31,643,195.23 × 8,140,858.27
  4. Step 4: Simplify right side
    21,094,639.70x = 257,602,767,686,431.12
  5. Step 5: Solve for x
    x = 257,602,767,686,431.12/21,094,639.70
  6. Step 6: Final answer
    x = 12,211,764.28

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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.