Home / 12,624,046.20-18,936,069.30-7,816,145.40

Finding the Fourth Proportional to 12,624,046.20, 18,936,069.30 and 7,816,145.40

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Solution

The fourth proportional to 12,624,046.20, 18,936,069.30 and 7,816,145.40 is: 11,724,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624,046.20 : 18,936,069.30 = 7,816,145.40 : x
  2. Step 2: Convert to fraction form
    12,624,046.20/18,936,069.30 = 7,816,145.40/x
  3. Step 3: Cross multiply
    12,624,046.20x = 18,936,069.30 × 7,816,145.40
  4. Step 4: Simplify right side
    12,624,046.20x = 148,007,070,953,276.22
  5. Step 5: Solve for x
    x = 148,007,070,953,276.22/12,624,046.20
  6. Step 6: Final answer
    x = 11,724,218.10

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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.