Home / 40,564,596.96-55,979,193.02-21,979,722.44

Finding the Fourth Proportional to 40,564,596.96, 55,979,193.02 and 21,979,722.44

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Solution

The fourth proportional to 40,564,596.96, 55,979,193.02 and 21,979,722.44 is: 30,332,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,596.96 : 55,979,193.02 = 21,979,722.44 : x
  2. Step 2: Convert to fraction form
    40,564,596.96/55,979,193.02 = 21,979,722.44/x
  3. Step 3: Cross multiply
    40,564,596.96x = 55,979,193.02 × 21,979,722.44
  4. Step 4: Simplify right side
    40,564,596.96x = 1,230,407,124,994,785.50
  5. Step 5: Solve for x
    x = 1,230,407,124,994,785.50/40,564,596.96
  6. Step 6: Final answer
    x = 30,332,043.63

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Double scale
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1.5x scale

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.