Home / 75,029,429.64-103,540,612.93-40,690,613.64

Finding the Fourth Proportional to 75,029,429.64, 103,540,612.93 and 40,690,613.64

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Solution

The fourth proportional to 75,029,429.64, 103,540,612.93 and 40,690,613.64 is: 56,153,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,029,429.64 : 103,540,612.93 = 40,690,613.64 : x
  2. Step 2: Convert to fraction form
    75,029,429.64/103,540,612.93 = 40,690,613.64/x
  3. Step 3: Cross multiply
    75,029,429.64x = 103,540,612.93 × 40,690,613.64
  4. Step 4: Simplify right side
    75,029,429.64x = 4,213,131,076,783,418.50
  5. Step 5: Solve for x
    x = 4,213,131,076,783,418.50/75,029,429.64
  6. Step 6: Final answer
    x = 56,153,046.84

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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.