Home / 122,520,652.96-169,076,321.04-66,766,560.16

Finding the Fourth Proportional to 122,520,652.96, 169,076,321.04 and 66,766,560.16

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Solution

The fourth proportional to 122,520,652.96, 169,076,321.04 and 66,766,560.16 is: 92,136,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,520,652.96 : 169,076,321.04 = 66,766,560.16 : x
  2. Step 2: Convert to fraction form
    122,520,652.96/169,076,321.04 = 66,766,560.16/x
  3. Step 3: Cross multiply
    122,520,652.96x = 169,076,321.04 × 66,766,560.16
  4. Step 4: Simplify right side
    122,520,652.96x = 11,288,644,360,348,632
  5. Step 5: Solve for x
    x = 11,288,644,360,348,632/122,520,652.96
  6. Step 6: Final answer
    x = 92,136,665.02

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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.