Home / 20,774,217.94-31,161,961.74-7,127,172.88

Finding the Fourth Proportional to 20,774,217.94, 31,161,961.74 and 7,127,172.88

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Solution

The fourth proportional to 20,774,217.94, 31,161,961.74 and 7,127,172.88 is: 10,690,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,217.94 : 31,161,961.74 = 7,127,172.88 : x
  2. Step 2: Convert to fraction form
    20,774,217.94/31,161,961.74 = 7,127,172.88/x
  3. Step 3: Cross multiply
    20,774,217.94x = 31,161,961.74 × 7,127,172.88
  4. Step 4: Simplify right side
    20,774,217.94x = 222,096,688,600,925.59
  5. Step 5: Solve for x
    x = 222,096,688,600,925.59/20,774,217.94
  6. Step 6: Final answer
    x = 10,690,977.12

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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.