Home / 13,129,617.60-19,683,928.80-5,550,350.40

Finding the Fourth Proportional to 13,129,617.60, 19,683,928.80 and 5,550,350.40

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Solution

The fourth proportional to 13,129,617.60, 19,683,928.80 and 5,550,350.40 is: 8,321,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,617.60 : 19,683,928.80 = 5,550,350.40 : x
  2. Step 2: Convert to fraction form
    13,129,617.60/19,683,928.80 = 5,550,350.40/x
  3. Step 3: Cross multiply
    13,129,617.60x = 19,683,928.80 × 5,550,350.40
  4. Step 4: Simplify right side
    13,129,617.60x = 109,252,702,088,651.53
  5. Step 5: Solve for x
    x = 109,252,702,088,651.53/13,129,617.60
  6. Step 6: Final answer
    x = 8,321,087.90

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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.