Home / 112,126,719.60-168,190,079.40-30,245,439.60

Finding the Fourth Proportional to 112,126,719.60, 168,190,079.40 and 30,245,439.60

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Solution

The fourth proportional to 112,126,719.60, 168,190,079.40 and 30,245,439.60 is: 45,368,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126,719.60 : 168,190,079.40 = 30,245,439.60 : x
  2. Step 2: Convert to fraction form
    112,126,719.60/168,190,079.40 = 30,245,439.60/x
  3. Step 3: Cross multiply
    112,126,719.60x = 168,190,079.40 × 30,245,439.60
  4. Step 4: Simplify right side
    112,126,719.60x = 5,086,982,887,811,905
  5. Step 5: Solve for x
    x = 5,086,982,887,811,905/112,126,719.60
  6. Step 6: Final answer
    x = 45,368,159.40

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1.5x scale

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.