Home / 664,306,363.80-996,742,980.90-319,082,290.20

Finding the Fourth Proportional to 664,306,363.80, 996,742,980.90 and 319,082,290.20

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Solution

The fourth proportional to 664,306,363.80, 996,742,980.90 and 319,082,290.20 is: 478,759,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306,363.80 : 996,742,980.90 = 319,082,290.20 : x
  2. Step 2: Convert to fraction form
    664,306,363.80/996,742,980.90 = 319,082,290.20/x
  3. Step 3: Cross multiply
    664,306,363.80x = 996,742,980.90 × 319,082,290.20
  4. Step 4: Simplify right side
    664,306,363.80x = 318,043,033,086,346,816
  5. Step 5: Solve for x
    x = 318,043,033,086,346,816/664,306,363.80
  6. Step 6: Final answer
    x = 478,759,576.03

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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.