Home / 487,261,548.45-672,449,376.66-275,587,144.92

Finding the Fourth Proportional to 487,261,548.45, 672,449,376.66 and 275,587,144.92

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Solution

The fourth proportional to 487,261,548.45, 672,449,376.66 and 275,587,144.92 is: 380,326,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,261,548.45 : 672,449,376.66 = 275,587,144.92 : x
  2. Step 2: Convert to fraction form
    487,261,548.45/672,449,376.66 = 275,587,144.92/x
  3. Step 3: Cross multiply
    487,261,548.45x = 672,449,376.66 × 275,587,144.92
  4. Step 4: Simplify right side
    487,261,548.45x = 185,318,403,816,963,072
  5. Step 5: Solve for x
    x = 185,318,403,816,963,072/487,261,548.45
  6. Step 6: Final answer
    x = 380,326,345.07

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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.