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Finding the Fourth Proportional to 12,993,334.80, 19,448,011.80 and 10,137,987.60

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Solution

The fourth proportional to 12,993,334.80, 19,448,011.80 and 10,137,987.60 is: 15,174,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993,334.80 : 19,448,011.80 = 10,137,987.60 : x
  2. Step 2: Convert to fraction form
    12,993,334.80/19,448,011.80 = 10,137,987.60/x
  3. Step 3: Cross multiply
    12,993,334.80x = 19,448,011.80 × 10,137,987.60
  4. Step 4: Simplify right side
    12,993,334.80x = 197,163,702,473,053.69
  5. Step 5: Solve for x
    x = 197,163,702,473,053.69/12,993,334.80
  6. Step 6: Final answer
    x = 15,174,218.59

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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.