Home / 12,456,491.40-18,684,737.10-6,716,928.60

Finding the Fourth Proportional to 12,456,491.40, 18,684,737.10 and 6,716,928.60

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Solution

The fourth proportional to 12,456,491.40, 18,684,737.10 and 6,716,928.60 is: 10,075,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,491.40 : 18,684,737.10 = 6,716,928.60 : x
  2. Step 2: Convert to fraction form
    12,456,491.40/18,684,737.10 = 6,716,928.60/x
  3. Step 3: Cross multiply
    12,456,491.40x = 18,684,737.10 × 6,716,928.60
  4. Step 4: Simplify right side
    12,456,491.40x = 125,504,045,010,471.06
  5. Step 5: Solve for x
    x = 125,504,045,010,471.06/12,456,491.40
  6. Step 6: Final answer
    x = 10,075,392.90

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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.