Home / 380,202,336,205.80-570,303,504,308.70-318,834,930,748.20

Finding the Fourth Proportional to 380,202,336,205.80, 570,303,504,308.70 and 318,834,930,748.20

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Solution

The fourth proportional to 380,202,336,205.80, 570,303,504,308.70 and 318,834,930,748.20 is: 478,252,396,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,336,205.80 : 570,303,504,308.70 = 318,834,930,748.20 : x
  2. Step 2: Convert to fraction form
    380,202,336,205.80/570,303,504,308.70 = 318,834,930,748.20/x
  3. Step 3: Cross multiply
    380,202,336,205.80x = 570,303,504,308.70 × 318,834,930,748.20
  4. Step 4: Simplify right side
    380,202,336,205.80x = 181,832,678,301,720,146,608,128
  5. Step 5: Solve for x
    x = 181,832,678,301,720,146,608,128/380,202,336,205.80
  6. Step 6: Final answer
    x = 478,252,396,122.30

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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.