Home / 18,615,978,788.22-27,923,784,157.22-8,528,830,464.87

Finding the Fourth Proportional to 18,615,978,788.22, 27,923,784,157.22 and 8,528,830,464.87

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Solution

The fourth proportional to 18,615,978,788.22, 27,923,784,157.22 and 8,528,830,464.87 is: 12,793,161,386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615,978,788.22 : 27,923,784,157.22 = 8,528,830,464.87 : x
  2. Step 2: Convert to fraction form
    18,615,978,788.22/27,923,784,157.22 = 8,528,830,464.87/x
  3. Step 3: Cross multiply
    18,615,978,788.22x = 27,923,784,157.22 × 8,528,830,464.87
  4. Step 4: Simplify right side
    18,615,978,788.22x = 238,157,221,014,518,071,296
  5. Step 5: Solve for x
    x = 238,157,221,014,518,071,296/18,615,978,788.22
  6. Step 6: Final answer
    x = 12,793,161,386.99

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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.