Home / 1,455,361,278.10-2,183,041,917.15-420,255,927.70

Finding the Fourth Proportional to 1,455,361,278.10, 2,183,041,917.15 and 420,255,927.70

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Solution

The fourth proportional to 1,455,361,278.10, 2,183,041,917.15 and 420,255,927.70 is: 630,383,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,361,278.10 : 2,183,041,917.15 = 420,255,927.70 : x
  2. Step 2: Convert to fraction form
    1,455,361,278.10/2,183,041,917.15 = 420,255,927.70/x
  3. Step 3: Cross multiply
    1,455,361,278.10x = 2,183,041,917.15 × 420,255,927.70
  4. Step 4: Simplify right side
    1,455,361,278.10x = 917,436,306,099,859,840
  5. Step 5: Solve for x
    x = 917,436,306,099,859,840/1,455,361,278.10
  6. Step 6: Final answer
    x = 630,383,891.55

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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.