Home / 12,129,376.10-18,188,815.35-4,938,520.10

Finding the Fourth Proportional to 12,129,376.10, 18,188,815.35 and 4,938,520.10

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Solution

The fourth proportional to 12,129,376.10, 18,188,815.35 and 4,938,520.10 is: 7,405,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,376.10 : 18,188,815.35 = 4,938,520.10 : x
  2. Step 2: Convert to fraction form
    12,129,376.10/18,188,815.35 = 4,938,520.10/x
  3. Step 3: Cross multiply
    12,129,376.10x = 18,188,815.35 × 4,938,520.10
  4. Step 4: Simplify right side
    12,129,376.10x = 89,825,830,201,163.53
  5. Step 5: Solve for x
    x = 89,825,830,201,163.53/12,129,376.10
  6. Step 6: Final answer
    x = 7,405,643.08

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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.