Home / 87,042,047.35-120,119,022.21-49,871,582.77

Finding the Fourth Proportional to 87,042,047.35, 120,119,022.21 and 49,871,582.77

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Solution

The fourth proportional to 87,042,047.35, 120,119,022.21 and 49,871,582.77 is: 68,823,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,042,047.35 : 120,119,022.21 = 49,871,582.77 : x
  2. Step 2: Convert to fraction form
    87,042,047.35/120,119,022.21 = 49,871,582.77/x
  3. Step 3: Cross multiply
    87,042,047.35x = 120,119,022.21 × 49,871,582.77
  4. Step 4: Simplify right side
    87,042,047.35x = 5,990,525,758,397,483
  5. Step 5: Solve for x
    x = 5,990,525,758,397,483/87,042,047.35
  6. Step 6: Final answer
    x = 68,823,355.39

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1.5x scale

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.