Home / 605,115,987.40-907,548,009.90-260,080,870.60

Finding the Fourth Proportional to 605,115,987.40, 907,548,009.90 and 260,080,870.60

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Solution

The fourth proportional to 605,115,987.40, 907,548,009.90 and 260,080,870.60 is: 390,067,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,115,987.40 : 907,548,009.90 = 260,080,870.60 : x
  2. Step 2: Convert to fraction form
    605,115,987.40/907,548,009.90 = 260,080,870.60/x
  3. Step 3: Cross multiply
    605,115,987.40x = 907,548,009.90 × 260,080,870.60
  4. Step 4: Simplify right side
    605,115,987.40x = 236,035,876,526,089,408
  5. Step 5: Solve for x
    x = 236,035,876,526,089,408/605,115,987.40
  6. Step 6: Final answer
    x = 390,067,163.06

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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.