Home / 12,090,318.40-18,149,474.40-7,303,412.80

Finding the Fourth Proportional to 12,090,318.40, 18,149,474.40 and 7,303,412.80

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Solution

The fourth proportional to 12,090,318.40, 18,149,474.40 and 7,303,412.80 is: 10,963,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,318.40 : 18,149,474.40 = 7,303,412.80 : x
  2. Step 2: Convert to fraction form
    12,090,318.40/18,149,474.40 = 7,303,412.80/x
  3. Step 3: Cross multiply
    12,090,318.40x = 18,149,474.40 × 7,303,412.80
  4. Step 4: Simplify right side
    12,090,318.40x = 132,553,103,646,232.31
  5. Step 5: Solve for x
    x = 132,553,103,646,232.31/12,090,318.40
  6. Step 6: Final answer
    x = 10,963,574.26

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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.