Home / 133,461,330.80-199,940,053.80-68,544,172.40

Finding the Fourth Proportional to 133,461,330.80, 199,940,053.80 and 68,544,172.40

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Solution

The fourth proportional to 133,461,330.80, 199,940,053.80 and 68,544,172.40 is: 102,686,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,461,330.80 : 199,940,053.80 = 68,544,172.40 : x
  2. Step 2: Convert to fraction form
    133,461,330.80/199,940,053.80 = 68,544,172.40/x
  3. Step 3: Cross multiply
    133,461,330.80x = 199,940,053.80 × 68,544,172.40
  4. Step 4: Simplify right side
    133,461,330.80x = 13,704,725,517,332,478
  5. Step 5: Solve for x
    x = 13,704,725,517,332,478/133,461,330.80
  6. Step 6: Final answer
    x = 102,686,863.94

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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.