Home / 1,206,108,809.80-1,809,163,214.70-516,085,815.40

Finding the Fourth Proportional to 1,206,108,809.80, 1,809,163,214.70 and 516,085,815.40

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Solution

The fourth proportional to 1,206,108,809.80, 1,809,163,214.70 and 516,085,815.40 is: 774,128,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,108,809.80 : 1,809,163,214.70 = 516,085,815.40 : x
  2. Step 2: Convert to fraction form
    1,206,108,809.80/1,809,163,214.70 = 516,085,815.40/x
  3. Step 3: Cross multiply
    1,206,108,809.80x = 1,809,163,214.70 × 516,085,815.40
  4. Step 4: Simplify right side
    1,206,108,809.80x = 933,683,472,850,134,784
  5. Step 5: Solve for x
    x = 933,683,472,850,134,784/1,206,108,809.80
  6. Step 6: Final answer
    x = 774,128,723.10

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Half scale
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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.