Home / 645,672,475,236.80-968,508,712,855.20-344,414,302,990.40

Finding the Fourth Proportional to 645,672,475,236.80, 968,508,712,855.20 and 344,414,302,990.40

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Solution

The fourth proportional to 645,672,475,236.80, 968,508,712,855.20 and 344,414,302,990.40 is: 516,621,454,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,672,475,236.80 : 968,508,712,855.20 = 344,414,302,990.40 : x
  2. Step 2: Convert to fraction form
    645,672,475,236.80/968,508,712,855.20 = 344,414,302,990.40/x
  3. Step 3: Cross multiply
    645,672,475,236.80x = 968,508,712,855.20 × 344,414,302,990.40
  4. Step 4: Simplify right side
    645,672,475,236.80x = 333,568,253,278,153,152,135,168
  5. Step 5: Solve for x
    x = 333,568,253,278,153,152,135,168/645,672,475,236.80
  6. Step 6: Final answer
    x = 516,621,454,485.60

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Double scale
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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.