Home / 386,654,182.91-533,566,999.27-219,386,844.09

Finding the Fourth Proportional to 386,654,182.91, 533,566,999.27 and 219,386,844.09

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Solution

The fourth proportional to 386,654,182.91, 533,566,999.27 and 219,386,844.09 is: 302,744,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,654,182.91 : 533,566,999.27 = 219,386,844.09 : x
  2. Step 2: Convert to fraction form
    386,654,182.91/533,566,999.27 = 219,386,844.09/x
  3. Step 3: Cross multiply
    386,654,182.91x = 533,566,999.27 × 219,386,844.09
  4. Step 4: Simplify right side
    386,654,182.91x = 117,057,580,083,405,440
  5. Step 5: Solve for x
    x = 117,057,580,083,405,440/386,654,182.91
  6. Step 6: Final answer
    x = 302,744,895.20

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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.