Home / 144,290,439.78-199,133,404.05-79,112,940.90

Finding the Fourth Proportional to 144,290,439.78, 199,133,404.05 and 79,112,940.90

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Solution

The fourth proportional to 144,290,439.78, 199,133,404.05 and 79,112,940.90 is: 109,182,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,290,439.78 : 199,133,404.05 = 79,112,940.90 : x
  2. Step 2: Convert to fraction form
    144,290,439.78/199,133,404.05 = 79,112,940.90/x
  3. Step 3: Cross multiply
    144,290,439.78x = 199,133,404.05 × 79,112,940.90
  4. Step 4: Simplify right side
    144,290,439.78x = 15,754,029,225,823,472
  5. Step 5: Solve for x
    x = 15,754,029,225,823,472/144,290,439.78
  6. Step 6: Final answer
    x = 109,182,765.33

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Why These Related Problems?

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