Home / 12,816,415.20-19,209,070.80-7,414,687.20

Finding the Fourth Proportional to 12,816,415.20, 19,209,070.80 and 7,414,687.20

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Solution

The fourth proportional to 12,816,415.20, 19,209,070.80 and 7,414,687.20 is: 11,113,033.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816,415.20 : 19,209,070.80 = 7,414,687.20 : x
  2. Step 2: Convert to fraction form
    12,816,415.20/19,209,070.80 = 7,414,687.20/x
  3. Step 3: Cross multiply
    12,816,415.20x = 19,209,070.80 × 7,414,687.20
  4. Step 4: Simplify right side
    12,816,415.20x = 142,429,251,384,653.78
  5. Step 5: Solve for x
    x = 142,429,251,384,653.78/12,816,415.20
  6. Step 6: Final answer
    x = 11,113,033.49

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1.5x scale

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.