Home / 120,110,986.80-180,166,480.20-69,092,650.80

Finding the Fourth Proportional to 120,110,986.80, 180,166,480.20 and 69,092,650.80

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Solution

The fourth proportional to 120,110,986.80, 180,166,480.20 and 69,092,650.80 is: 103,638,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,110,986.80 : 180,166,480.20 = 69,092,650.80 : x
  2. Step 2: Convert to fraction form
    120,110,986.80/180,166,480.20 = 69,092,650.80/x
  3. Step 3: Cross multiply
    120,110,986.80x = 180,166,480.20 × 69,092,650.80
  4. Step 4: Simplify right side
    120,110,986.80x = 12,448,179,702,323,712
  5. Step 5: Solve for x
    x = 12,448,179,702,323,712/120,110,986.80
  6. Step 6: Final answer
    x = 103,638,976.20

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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.