Home / 168,219,010.56-232,247,324.88-128,985,416.40

Finding the Fourth Proportional to 168,219,010.56, 232,247,324.88 and 128,985,416.40

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Solution

The fourth proportional to 168,219,010.56, 232,247,324.88 and 128,985,416.40 is: 178,080,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,219,010.56 : 232,247,324.88 = 128,985,416.40 : x
  2. Step 2: Convert to fraction form
    168,219,010.56/232,247,324.88 = 128,985,416.40/x
  3. Step 3: Cross multiply
    168,219,010.56x = 232,247,324.88 × 128,985,416.40
  4. Step 4: Simplify right side
    168,219,010.56x = 29,956,517,907,432,880
  5. Step 5: Solve for x
    x = 29,956,517,907,432,880/168,219,010.56
  6. Step 6: Final answer
    x = 178,080,454.81

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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.