Home / 867,165,427.35-1,196,657,327.04-490,813,934.72

Finding the Fourth Proportional to 867,165,427.35, 1,196,657,327.04 and 490,813,934.72

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Solution

The fourth proportional to 867,165,427.35, 1,196,657,327.04 and 490,813,934.72 is: 677,305,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,165,427.35 : 1,196,657,327.04 = 490,813,934.72 : x
  2. Step 2: Convert to fraction form
    867,165,427.35/1,196,657,327.04 = 490,813,934.72/x
  3. Step 3: Cross multiply
    867,165,427.35x = 1,196,657,327.04 × 490,813,934.72
  4. Step 4: Simplify right side
    867,165,427.35x = 587,336,091,197,694,720
  5. Step 5: Solve for x
    x = 587,336,091,197,694,720/867,165,427.35
  6. Step 6: Final answer
    x = 677,305,705.09

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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.