Home / 390,571,261.20-585,856,891.80-304,374,301.20

Finding the Fourth Proportional to 390,571,261.20, 585,856,891.80 and 304,374,301.20

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Solution

The fourth proportional to 390,571,261.20, 585,856,891.80 and 304,374,301.20 is: 456,561,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,571,261.20 : 585,856,891.80 = 304,374,301.20 : x
  2. Step 2: Convert to fraction form
    390,571,261.20/585,856,891.80 = 304,374,301.20/x
  3. Step 3: Cross multiply
    390,571,261.20x = 585,856,891.80 × 304,374,301.20
  4. Step 4: Simplify right side
    390,571,261.20x = 178,319,782,044,828,992
  5. Step 5: Solve for x
    x = 178,319,782,044,828,992/390,571,261.20
  6. Step 6: Final answer
    x = 456,561,451.80

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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.