Home / 124,058,496.72-171,197,912.56-77,674,345.68

Finding the Fourth Proportional to 124,058,496.72, 171,197,912.56 and 77,674,345.68

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Solution

The fourth proportional to 124,058,496.72, 171,197,912.56 and 77,674,345.68 is: 107,188,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,058,496.72 : 171,197,912.56 = 77,674,345.68 : x
  2. Step 2: Convert to fraction form
    124,058,496.72/171,197,912.56 = 77,674,345.68/x
  3. Step 3: Cross multiply
    124,058,496.72x = 171,197,912.56 × 77,674,345.68
  4. Step 4: Simplify right side
    124,058,496.72x = 13,297,685,839,879,856
  5. Step 5: Solve for x
    x = 13,297,685,839,879,856/124,058,496.72
  6. Step 6: Final answer
    x = 107,188,835.84

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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.