Home / 1,211,749,426.92-1,820,906,210.16-659,460,193.32

Finding the Fourth Proportional to 1,211,749,426.92, 1,820,906,210.16 and 659,460,193.32

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Solution

The fourth proportional to 1,211,749,426.92, 1,820,906,210.16 and 659,460,193.32 is: 990,976,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,749,426.92 : 1,820,906,210.16 = 659,460,193.32 : x
  2. Step 2: Convert to fraction form
    1,211,749,426.92/1,820,906,210.16 = 659,460,193.32/x
  3. Step 3: Cross multiply
    1,211,749,426.92x = 1,820,906,210.16 × 659,460,193.32
  4. Step 4: Simplify right side
    1,211,749,426.92x = 1,200,815,161,369,702,400
  5. Step 5: Solve for x
    x = 1,200,815,161,369,702,400/1,211,749,426.92
  6. Step 6: Final answer
    x = 990,976,463.20

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Double scale
Find fourth proportional to 1,211,749,427.92, 1,820,906,211.66 and 659,460,194.32
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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.