Home / 126,374,628.40-189,561,942.60-112,025,721.40

Finding the Fourth Proportional to 126,374,628.40, 189,561,942.60 and 112,025,721.40

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Solution

The fourth proportional to 126,374,628.40, 189,561,942.60 and 112,025,721.40 is: 168,038,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,374,628.40 : 189,561,942.60 = 112,025,721.40 : x
  2. Step 2: Convert to fraction form
    126,374,628.40/189,561,942.60 = 112,025,721.40/x
  3. Step 3: Cross multiply
    126,374,628.40x = 189,561,942.60 × 112,025,721.40
  4. Step 4: Simplify right side
    126,374,628.40x = 21,235,813,369,750,392
  5. Step 5: Solve for x
    x = 21,235,813,369,750,392/126,374,628.40
  6. Step 6: Final answer
    x = 168,038,582.10

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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.