Home / 386,714,333.54-533,678,670.86-217,198,444.16

Finding the Fourth Proportional to 386,714,333.54, 533,678,670.86 and 217,198,444.16

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Solution

The fourth proportional to 386,714,333.54, 533,678,670.86 and 217,198,444.16 is: 299,741,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,714,333.54 : 533,678,670.86 = 217,198,444.16 : x
  2. Step 2: Convert to fraction form
    386,714,333.54/533,678,670.86 = 217,198,444.16/x
  3. Step 3: Cross multiply
    386,714,333.54x = 533,678,670.86 × 217,198,444.16
  4. Step 4: Simplify right side
    386,714,333.54x = 115,914,176,988,414,352
  5. Step 5: Solve for x
    x = 115,914,176,988,414,352/386,714,333.54
  6. Step 6: Final answer
    x = 299,741,092.94

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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.