Home / 2,100,445,462.40-3,150,668,193.60-1,979,914,643.60

Finding the Fourth Proportional to 2,100,445,462.40, 3,150,668,193.60 and 1,979,914,643.60

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Solution

The fourth proportional to 2,100,445,462.40, 3,150,668,193.60 and 1,979,914,643.60 is: 2,969,871,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,445,462.40 : 3,150,668,193.60 = 1,979,914,643.60 : x
  2. Step 2: Convert to fraction form
    2,100,445,462.40/3,150,668,193.60 = 1,979,914,643.60/x
  3. Step 3: Cross multiply
    2,100,445,462.40x = 3,150,668,193.60 × 1,979,914,643.60
  4. Step 4: Simplify right side
    2,100,445,462.40x = 6,238,054,093,633,399,808
  5. Step 5: Solve for x
    x = 6,238,054,093,633,399,808/2,100,445,462.40
  6. Step 6: Final answer
    x = 2,969,871,965.40

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Double scale
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Similar ratio
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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.