Home / 213,029,936.70-319,544,905.05-122,330,672.70

Finding the Fourth Proportional to 213,029,936.70, 319,544,905.05 and 122,330,672.70

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Solution

The fourth proportional to 213,029,936.70, 319,544,905.05 and 122,330,672.70 is: 183,496,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,029,936.70 : 319,544,905.05 = 122,330,672.70 : x
  2. Step 2: Convert to fraction form
    213,029,936.70/319,544,905.05 = 122,330,672.70/x
  3. Step 3: Cross multiply
    213,029,936.70x = 319,544,905.05 × 122,330,672.70
  4. Step 4: Simplify right side
    213,029,936.70x = 39,090,143,192,624,128
  5. Step 5: Solve for x
    x = 39,090,143,192,624,128/213,029,936.70
  6. Step 6: Final answer
    x = 183,496,009.05

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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.