Home / 87,540,430.92-120,820,795.74-50,892,259.56

Finding the Fourth Proportional to 87,540,430.92, 120,820,795.74 and 50,892,259.56

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Solution

The fourth proportional to 87,540,430.92, 120,820,795.74 and 50,892,259.56 is: 70,240,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540,430.92 : 120,820,795.74 = 50,892,259.56 : x
  2. Step 2: Convert to fraction form
    87,540,430.92/120,820,795.74 = 50,892,259.56/x
  3. Step 3: Cross multiply
    87,540,430.92x = 120,820,795.74 × 50,892,259.56
  4. Step 4: Simplify right side
    87,540,430.92x = 6,148,843,297,045,822
  5. Step 5: Solve for x
    x = 6,148,843,297,045,822/87,540,430.92
  6. Step 6: Final answer
    x = 70,240,039.17

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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.