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Finding the Fourth Proportional to 169,989,152.80, 254,983,729.20 and 55,056,179.20

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Solution

The fourth proportional to 169,989,152.80, 254,983,729.20 and 55,056,179.20 is: 82,584,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,989,152.80 : 254,983,729.20 = 55,056,179.20 : x
  2. Step 2: Convert to fraction form
    169,989,152.80/254,983,729.20 = 55,056,179.20/x
  3. Step 3: Cross multiply
    169,989,152.80x = 254,983,729.20 × 55,056,179.20
  4. Step 4: Simplify right side
    169,989,152.80x = 14,038,429,887,919,472
  5. Step 5: Solve for x
    x = 14,038,429,887,919,472/169,989,152.80
  6. Step 6: Final answer
    x = 82,584,268.80

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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.