Home / 81,159,101.16-121,662,445.66-27,268,725.48

Finding the Fourth Proportional to 81,159,101.16, 121,662,445.66 and 27,268,725.48

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Solution

The fourth proportional to 81,159,101.16, 121,662,445.66 and 27,268,725.48 is: 40,877,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,159,101.16 : 121,662,445.66 = 27,268,725.48 : x
  2. Step 2: Convert to fraction form
    81,159,101.16/121,662,445.66 = 27,268,725.48/x
  3. Step 3: Cross multiply
    81,159,101.16x = 121,662,445.66 × 27,268,725.48
  4. Step 4: Simplify right side
    81,159,101.16x = 3,317,579,831,927,957.50
  5. Step 5: Solve for x
    x = 3,317,579,831,927,957.50/81,159,101.16
  6. Step 6: Final answer
    x = 40,877,483.66

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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.