Home / 12,103,218.80-18,136,165.80-10,498,252.40

Finding the Fourth Proportional to 12,103,218.80, 18,136,165.80 and 10,498,252.40

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Solution

The fourth proportional to 12,103,218.80, 18,136,165.80 and 10,498,252.40 is: 15,731,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,218.80 : 18,136,165.80 = 10,498,252.40 : x
  2. Step 2: Convert to fraction form
    12,103,218.80/18,136,165.80 = 10,498,252.40/x
  3. Step 3: Cross multiply
    12,103,218.80x = 18,136,165.80 × 10,498,252.40
  4. Step 4: Simplify right side
    12,103,218.80x = 190,398,046,136,647.94
  5. Step 5: Solve for x
    x = 190,398,046,136,647.94/12,103,218.80
  6. Step 6: Final answer
    x = 15,731,190.96

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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.