Home / 1,261,200,212.40-1,741,275,246-1,128,811,946.16

Finding the Fourth Proportional to 1,261,200,212.40, 1,741,275,246 and 1,128,811,946.16

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Solution

The fourth proportional to 1,261,200,212.40, 1,741,275,246 and 1,128,811,946.16 is: 1,558,493,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,200,212.40 : 1,741,275,246 = 1,128,811,946.16 : x
  2. Step 2: Convert to fraction form
    1,261,200,212.40/1,741,275,246 = 1,128,811,946.16/x
  3. Step 3: Cross multiply
    1,261,200,212.40x = 1,741,275,246 × 1,128,811,946.16
  4. Step 4: Simplify right side
    1,261,200,212.40x = 1,965,572,299,237,492,992
  5. Step 5: Solve for x
    x = 1,965,572,299,237,492,992/1,261,200,212.40
  6. Step 6: Final answer
    x = 1,558,493,473.05

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Double scale
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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.