Home / 232,478,616.38-320,820,490.60-128,056,364.78

Finding the Fourth Proportional to 232,478,616.38, 320,820,490.60 and 128,056,364.78

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Solution

The fourth proportional to 232,478,616.38, 320,820,490.60 and 128,056,364.78 is: 176,717,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,478,616.38 : 320,820,490.60 = 128,056,364.78 : x
  2. Step 2: Convert to fraction form
    232,478,616.38/320,820,490.60 = 128,056,364.78/x
  3. Step 3: Cross multiply
    232,478,616.38x = 320,820,490.60 × 128,056,364.78
  4. Step 4: Simplify right side
    232,478,616.38x = 41,083,105,771,247,920
  5. Step 5: Solve for x
    x = 41,083,105,771,247,920/232,478,616.38
  6. Step 6: Final answer
    x = 176,717,783.39

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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.