Home / 20,862,916.32-31,298,798.16-6,485,633.76

Finding the Fourth Proportional to 20,862,916.32, 31,298,798.16 and 6,485,633.76

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Solution

The fourth proportional to 20,862,916.32, 31,298,798.16 and 6,485,633.76 is: 9,729,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,916.32 : 31,298,798.16 = 6,485,633.76 : x
  2. Step 2: Convert to fraction form
    20,862,916.32/31,298,798.16 = 6,485,633.76/x
  3. Step 3: Cross multiply
    20,862,916.32x = 31,298,798.16 × 6,485,633.76
  4. Step 4: Simplify right side
    20,862,916.32x = 202,992,541,993,921.88
  5. Step 5: Solve for x
    x = 202,992,541,993,921.88/20,862,916.32
  6. Step 6: Final answer
    x = 9,729,825.82

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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.