Home / 165,534,540.80-248,301,811.20-79,228,522.40

Finding the Fourth Proportional to 165,534,540.80, 248,301,811.20 and 79,228,522.40

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Solution

The fourth proportional to 165,534,540.80, 248,301,811.20 and 79,228,522.40 is: 118,842,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,534,540.80 : 248,301,811.20 = 79,228,522.40 : x
  2. Step 2: Convert to fraction form
    165,534,540.80/248,301,811.20 = 79,228,522.40/x
  3. Step 3: Cross multiply
    165,534,540.80x = 248,301,811.20 × 79,228,522.40
  4. Step 4: Simplify right side
    165,534,540.80x = 19,672,585,610,619,772
  5. Step 5: Solve for x
    x = 19,672,585,610,619,772/165,534,540.80
  6. Step 6: Final answer
    x = 118,842,783.60

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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.