Home / 659,339,911.60-989,009,867.40-168,052,231.60

Finding the Fourth Proportional to 659,339,911.60, 989,009,867.40 and 168,052,231.60

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Solution

The fourth proportional to 659,339,911.60, 989,009,867.40 and 168,052,231.60 is: 252,078,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,339,911.60 : 989,009,867.40 = 168,052,231.60 : x
  2. Step 2: Convert to fraction form
    659,339,911.60/989,009,867.40 = 168,052,231.60/x
  3. Step 3: Cross multiply
    659,339,911.60x = 989,009,867.40 × 168,052,231.60
  4. Step 4: Simplify right side
    659,339,911.60x = 166,205,315,290,990,080
  5. Step 5: Solve for x
    x = 166,205,315,290,990,080/659,339,911.60
  6. Step 6: Final answer
    x = 252,078,347.40

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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.