Home / 256,572,085.10-354,361,769.35-173,922,380.78

Finding the Fourth Proportional to 256,572,085.10, 354,361,769.35 and 173,922,380.78

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Solution

The fourth proportional to 256,572,085.10, 354,361,769.35 and 173,922,380.78 is: 240,211,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,572,085.10 : 354,361,769.35 = 173,922,380.78 : x
  2. Step 2: Convert to fraction form
    256,572,085.10/354,361,769.35 = 173,922,380.78/x
  3. Step 3: Cross multiply
    256,572,085.10x = 354,361,769.35 × 173,922,380.78
  4. Step 4: Simplify right side
    256,572,085.10x = 61,631,442,580,558,624
  5. Step 5: Solve for x
    x = 61,631,442,580,558,624/256,572,085.10
  6. Step 6: Final answer
    x = 240,211,021.23

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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.