Home / 39,840,265,512.09-54,979,432,928.11-21,775,771,260.49

Finding the Fourth Proportional to 39,840,265,512.09, 54,979,432,928.11 and 21,775,771,260.49

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Solution

The fourth proportional to 39,840,265,512.09, 54,979,432,928.11 and 21,775,771,260.49 is: 30,050,491,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840,265,512.09 : 54,979,432,928.11 = 21,775,771,260.49 : x
  2. Step 2: Convert to fraction form
    39,840,265,512.09/54,979,432,928.11 = 21,775,771,260.49/x
  3. Step 3: Cross multiply
    39,840,265,512.09x = 54,979,432,928.11 × 21,775,771,260.49
  4. Step 4: Simplify right side
    39,840,265,512.09x = 1,197,219,555,473,975,410,688
  5. Step 5: Solve for x
    x = 1,197,219,555,473,975,410,688/39,840,265,512.09
  6. Step 6: Final answer
    x = 30,050,491,383.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.