Home / 1,318,684,565.20-1,978,026,847.80-336,109,205.20

Finding the Fourth Proportional to 1,318,684,565.20, 1,978,026,847.80 and 336,109,205.20

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Solution

The fourth proportional to 1,318,684,565.20, 1,978,026,847.80 and 336,109,205.20 is: 504,163,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,684,565.20 : 1,978,026,847.80 = 336,109,205.20 : x
  2. Step 2: Convert to fraction form
    1,318,684,565.20/1,978,026,847.80 = 336,109,205.20/x
  3. Step 3: Cross multiply
    1,318,684,565.20x = 1,978,026,847.80 × 336,109,205.20
  4. Step 4: Simplify right side
    1,318,684,565.20x = 664,833,031,678,319,360
  5. Step 5: Solve for x
    x = 664,833,031,678,319,360/1,318,684,565.20
  6. Step 6: Final answer
    x = 504,163,807.80

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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.