Home / 77,420,363.78-106,785,707.38-50,950,284.03

Finding the Fourth Proportional to 77,420,363.78, 106,785,707.38 and 50,950,284.03

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Solution

The fourth proportional to 77,420,363.78, 106,785,707.38 and 50,950,284.03 is: 70,275,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,420,363.78 : 106,785,707.38 = 50,950,284.03 : x
  2. Step 2: Convert to fraction form
    77,420,363.78/106,785,707.38 = 50,950,284.03/x
  3. Step 3: Cross multiply
    77,420,363.78x = 106,785,707.38 × 50,950,284.03
  4. Step 4: Simplify right side
    77,420,363.78x = 5,440,762,121,228,091
  5. Step 5: Solve for x
    x = 5,440,762,121,228,091/77,420,363.78
  6. Step 6: Final answer
    x = 70,275,594.89

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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.