Home / 21,748,974.52-30,015,497.28-11,961,143.50

Finding the Fourth Proportional to 21,748,974.52, 30,015,497.28 and 11,961,143.50

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Solution

The fourth proportional to 21,748,974.52, 30,015,497.28 and 11,961,143.50 is: 16,507,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748,974.52 : 30,015,497.28 = 11,961,143.50 : x
  2. Step 2: Convert to fraction form
    21,748,974.52/30,015,497.28 = 11,961,143.50/x
  3. Step 3: Cross multiply
    21,748,974.52x = 30,015,497.28 × 11,961,143.50
  4. Step 4: Simplify right side
    21,748,974.52x = 359,019,670,189,939.69
  5. Step 5: Solve for x
    x = 359,019,670,189,939.69/21,748,974.52
  6. Step 6: Final answer
    x = 16,507,429.80

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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.