Home / 143,443,906,809.75-197,952,666,544.42-78,339,225,385.08

Finding the Fourth Proportional to 143,443,906,809.75, 197,952,666,544.42 and 78,339,225,385.08

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Solution

The fourth proportional to 143,443,906,809.75, 197,952,666,544.42 and 78,339,225,385.08 is: 108,108,172,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,443,906,809.75 : 197,952,666,544.42 = 78,339,225,385.08 : x
  2. Step 2: Convert to fraction form
    143,443,906,809.75/197,952,666,544.42 = 78,339,225,385.08/x
  3. Step 3: Cross multiply
    143,443,906,809.75x = 197,952,666,544.42 × 78,339,225,385.08
  4. Step 4: Simplify right side
    143,443,906,809.75x = 15,507,458,560,000,905,969,664
  5. Step 5: Solve for x
    x = 15,507,458,560,000,905,969,664/143,443,906,809.75
  6. Step 6: Final answer
    x = 108,108,172,071.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.