Home / 108,768,261.60-163,152,392.40-81,894,405.60

Finding the Fourth Proportional to 108,768,261.60, 163,152,392.40 and 81,894,405.60

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Solution

The fourth proportional to 108,768,261.60, 163,152,392.40 and 81,894,405.60 is: 122,841,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,768,261.60 : 163,152,392.40 = 81,894,405.60 : x
  2. Step 2: Convert to fraction form
    108,768,261.60/163,152,392.40 = 81,894,405.60/x
  3. Step 3: Cross multiply
    108,768,261.60x = 163,152,392.40 × 81,894,405.60
  4. Step 4: Simplify right side
    108,768,261.60x = 13,361,268,197,815,956
  5. Step 5: Solve for x
    x = 13,361,268,197,815,956/108,768,261.60
  6. Step 6: Final answer
    x = 122,841,608.40

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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.