Home / 103,578,930.30-142,928,747.22-57,166,194.90

Finding the Fourth Proportional to 103,578,930.30, 142,928,747.22 and 57,166,194.90

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Solution

The fourth proportional to 103,578,930.30, 142,928,747.22 and 57,166,194.90 is: 78,883,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,578,930.30 : 142,928,747.22 = 57,166,194.90 : x
  2. Step 2: Convert to fraction form
    103,578,930.30/142,928,747.22 = 57,166,194.90/x
  3. Step 3: Cross multiply
    103,578,930.30x = 142,928,747.22 × 57,166,194.90
  4. Step 4: Simplify right side
    103,578,930.30x = 8,170,692,620,391,353
  5. Step 5: Solve for x
    x = 8,170,692,620,391,353/103,578,930.30
  6. Step 6: Final answer
    x = 78,883,732.40

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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.