Home / 13,285,660.80-19,928,491.20-13,173,686.40

Finding the Fourth Proportional to 13,285,660.80, 19,928,491.20 and 13,173,686.40

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Solution

The fourth proportional to 13,285,660.80, 19,928,491.20 and 13,173,686.40 is: 19,760,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,660.80 : 19,928,491.20 = 13,173,686.40 : x
  2. Step 2: Convert to fraction form
    13,285,660.80/19,928,491.20 = 13,173,686.40/x
  3. Step 3: Cross multiply
    13,285,660.80x = 19,928,491.20 × 13,173,686.40
  4. Step 4: Simplify right side
    13,285,660.80x = 262,531,693,493,959.69
  5. Step 5: Solve for x
    x = 262,531,693,493,959.69/13,285,660.80
  6. Step 6: Final answer
    x = 19,760,529.60

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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.