Home / 87,753,605.70-131,630,408.55-42,403,973.70

Finding the Fourth Proportional to 87,753,605.70, 131,630,408.55 and 42,403,973.70

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Solution

The fourth proportional to 87,753,605.70, 131,630,408.55 and 42,403,973.70 is: 63,605,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,753,605.70 : 131,630,408.55 = 42,403,973.70 : x
  2. Step 2: Convert to fraction form
    87,753,605.70/131,630,408.55 = 42,403,973.70/x
  3. Step 3: Cross multiply
    87,753,605.70x = 131,630,408.55 × 42,403,973.70
  4. Step 4: Simplify right side
    87,753,605.70x = 5,581,652,382,274,455
  5. Step 5: Solve for x
    x = 5,581,652,382,274,455/87,753,605.70
  6. Step 6: Final answer
    x = 63,605,960.55

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1.5x scale

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.