Home / 126,670,804.40-189,782,257.80-112,338,081.20

Finding the Fourth Proportional to 126,670,804.40, 189,782,257.80 and 112,338,081.20

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Solution

The fourth proportional to 126,670,804.40, 189,782,257.80 and 112,338,081.20 is: 168,308,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,670,804.40 : 189,782,257.80 = 112,338,081.20 : x
  2. Step 2: Convert to fraction form
    126,670,804.40/189,782,257.80 = 112,338,081.20/x
  3. Step 3: Cross multiply
    126,670,804.40x = 189,782,257.80 × 112,338,081.20
  4. Step 4: Simplify right side
    126,670,804.40x = 21,319,774,687,055,736
  5. Step 5: Solve for x
    x = 21,319,774,687,055,736/126,670,804.40
  6. Step 6: Final answer
    x = 168,308,512.67

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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.