Home / 404,876,979.20-607,315,468.80-385,058,892.80

Finding the Fourth Proportional to 404,876,979.20, 607,315,468.80 and 385,058,892.80

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Solution

The fourth proportional to 404,876,979.20, 607,315,468.80 and 385,058,892.80 is: 577,588,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,876,979.20 : 607,315,468.80 = 385,058,892.80 : x
  2. Step 2: Convert to fraction form
    404,876,979.20/607,315,468.80 = 385,058,892.80/x
  3. Step 3: Cross multiply
    404,876,979.20x = 607,315,468.80 × 385,058,892.80
  4. Step 4: Simplify right side
    404,876,979.20x = 233,852,221,996,440,928
  5. Step 5: Solve for x
    x = 233,852,221,996,440,928/404,876,979.20
  6. Step 6: Final answer
    x = 577,588,339.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.