Home / 120,389,786.72-180,540,385.64-41,586,239.41

Finding the Fourth Proportional to 120,389,786.72, 180,540,385.64 and 41,586,239.41

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Solution

The fourth proportional to 120,389,786.72, 180,540,385.64 and 41,586,239.41 is: 62,364,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,389,786.72 : 180,540,385.64 = 41,586,239.41 : x
  2. Step 2: Convert to fraction form
    120,389,786.72/180,540,385.64 = 41,586,239.41/x
  3. Step 3: Cross multiply
    120,389,786.72x = 180,540,385.64 × 41,586,239.41
  4. Step 4: Simplify right side
    120,389,786.72x = 7,507,995,700,129,146
  5. Step 5: Solve for x
    x = 7,507,995,700,129,146/120,389,786.72
  6. Step 6: Final answer
    x = 62,364,058.49

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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.