Home / 12,905,379.12-17,813,184.01-8,435,583.53

Finding the Fourth Proportional to 12,905,379.12, 17,813,184.01 and 8,435,583.53

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Solution

The fourth proportional to 12,905,379.12, 17,813,184.01 and 8,435,583.53 is: 11,643,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,379.12 : 17,813,184.01 = 8,435,583.53 : x
  2. Step 2: Convert to fraction form
    12,905,379.12/17,813,184.01 = 8,435,583.53/x
  3. Step 3: Cross multiply
    12,905,379.12x = 17,813,184.01 × 8,435,583.53
  4. Step 4: Simplify right side
    12,905,379.12x = 150,264,601,541,460.50
  5. Step 5: Solve for x
    x = 150,264,601,541,460.50/12,905,379.12
  6. Step 6: Final answer
    x = 11,643,563.52

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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.