Home / 13,183,132.80-19,786,363.20-7,785,033.60

Finding the Fourth Proportional to 13,183,132.80, 19,786,363.20 and 7,785,033.60

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Solution

The fourth proportional to 13,183,132.80, 19,786,363.20 and 7,785,033.60 is: 11,684,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183,132.80 : 19,786,363.20 = 7,785,033.60 : x
  2. Step 2: Convert to fraction form
    13,183,132.80/19,786,363.20 = 7,785,033.60/x
  3. Step 3: Cross multiply
    13,183,132.80x = 19,786,363.20 × 7,785,033.60
  4. Step 4: Simplify right side
    13,183,132.80x = 154,037,502,333,803.50
  5. Step 5: Solve for x
    x = 154,037,502,333,803.50/13,183,132.80
  6. Step 6: Final answer
    x = 11,684,438.34

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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.