Home / 21,933,459.45-30,269,119.95-12,143,903.78

Finding the Fourth Proportional to 21,933,459.45, 30,269,119.95 and 12,143,903.78

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Solution

The fourth proportional to 21,933,459.45, 30,269,119.95 and 12,143,903.78 is: 16,759,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933,459.45 : 30,269,119.95 = 12,143,903.78 : x
  2. Step 2: Convert to fraction form
    21,933,459.45/30,269,119.95 = 12,143,903.78/x
  3. Step 3: Cross multiply
    21,933,459.45x = 30,269,119.95 × 12,143,903.78
  4. Step 4: Simplify right side
    21,933,459.45x = 367,585,280,026,732.81
  5. Step 5: Solve for x
    x = 367,585,280,026,732.81/21,933,459.45
  6. Step 6: Final answer
    x = 16,759,110.93

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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.