Home / 1,206,108,510.80-1,809,162,766.20-516,085,516.40

Finding the Fourth Proportional to 1,206,108,510.80, 1,809,162,766.20 and 516,085,516.40

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Solution

The fourth proportional to 1,206,108,510.80, 1,809,162,766.20 and 516,085,516.40 is: 774,128,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,108,510.80 : 1,809,162,766.20 = 516,085,516.40 : x
  2. Step 2: Convert to fraction form
    1,206,108,510.80/1,809,162,766.20 = 516,085,516.40/x
  3. Step 3: Cross multiply
    1,206,108,510.80x = 1,809,162,766.20 × 516,085,516.40
  4. Step 4: Simplify right side
    1,206,108,510.80x = 933,682,700,445,979,392
  5. Step 5: Solve for x
    x = 933,682,700,445,979,392/1,206,108,510.80
  6. Step 6: Final answer
    x = 774,128,274.60

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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.