Home / 145,622,069.92-200,957,097.92-79,542,542.88

Finding the Fourth Proportional to 145,622,069.92, 200,957,097.92 and 79,542,542.88

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Solution

The fourth proportional to 145,622,069.92, 200,957,097.92 and 79,542,542.88 is: 109,767,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622,069.92 : 200,957,097.92 = 79,542,542.88 : x
  2. Step 2: Convert to fraction form
    145,622,069.92/200,957,097.92 = 79,542,542.88/x
  3. Step 3: Cross multiply
    145,622,069.92x = 200,957,097.92 × 79,542,542.88
  4. Step 4: Simplify right side
    145,622,069.92x = 15,984,638,578,341,956
  5. Step 5: Solve for x
    x = 15,984,638,578,341,956/145,622,069.92
  6. Step 6: Final answer
    x = 109,767,967.09

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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.