Home / 380,202,317,998.80-570,303,476,998.20-318,834,912,541.20

Finding the Fourth Proportional to 380,202,317,998.80, 570,303,476,998.20 and 318,834,912,541.20

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Solution

The fourth proportional to 380,202,317,998.80, 570,303,476,998.20 and 318,834,912,541.20 is: 478,252,368,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,317,998.80 : 570,303,476,998.20 = 318,834,912,541.20 : x
  2. Step 2: Convert to fraction form
    380,202,317,998.80/570,303,476,998.20 = 318,834,912,541.20/x
  3. Step 3: Cross multiply
    380,202,317,998.80x = 570,303,476,998.20 × 318,834,912,541.20
  4. Step 4: Simplify right side
    380,202,317,998.80x = 181,832,659,210,663,362,560,000
  5. Step 5: Solve for x
    x = 181,832,659,210,663,362,560,000/380,202,317,998.80
  6. Step 6: Final answer
    x = 478,252,368,811.80

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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.