Home / 13,281,617.80-19,922,426.70-12,105,886.60

Finding the Fourth Proportional to 13,281,617.80, 19,922,426.70 and 12,105,886.60

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Solution

The fourth proportional to 13,281,617.80, 19,922,426.70 and 12,105,886.60 is: 18,158,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281,617.80 : 19,922,426.70 = 12,105,886.60 : x
  2. Step 2: Convert to fraction form
    13,281,617.80/19,922,426.70 = 12,105,886.60/x
  3. Step 3: Cross multiply
    13,281,617.80x = 19,922,426.70 × 12,105,886.60
  4. Step 4: Simplify right side
    13,281,617.80x = 241,178,638,427,012.22
  5. Step 5: Solve for x
    x = 241,178,638,427,012.22/13,281,617.80
  6. Step 6: Final answer
    x = 18,158,829.90

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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.