Home / 21,186,690.36-31,757,990.40-9,817,789.56

Finding the Fourth Proportional to 21,186,690.36, 31,757,990.40 and 9,817,789.56

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Solution

The fourth proportional to 21,186,690.36, 31,757,990.40 and 9,817,789.56 is: 14,716,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,690.36 : 31,757,990.40 = 9,817,789.56 : x
  2. Step 2: Convert to fraction form
    21,186,690.36/31,757,990.40 = 9,817,789.56/x
  3. Step 3: Cross multiply
    21,186,690.36x = 31,757,990.40 × 9,817,789.56
  4. Step 4: Simplify right side
    21,186,690.36x = 311,793,266,595,700.25
  5. Step 5: Solve for x
    x = 311,793,266,595,700.25/21,186,690.36
  6. Step 6: Final answer
    x = 14,716,468.75

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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.