Home / 1,455,362,490.60-2,183,043,735.90-420,257,140.20

Finding the Fourth Proportional to 1,455,362,490.60, 2,183,043,735.90 and 420,257,140.20

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Solution

The fourth proportional to 1,455,362,490.60, 2,183,043,735.90 and 420,257,140.20 is: 630,385,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,362,490.60 : 2,183,043,735.90 = 420,257,140.20 : x
  2. Step 2: Convert to fraction form
    1,455,362,490.60/2,183,043,735.90 = 420,257,140.20/x
  3. Step 3: Cross multiply
    1,455,362,490.60x = 2,183,043,735.90 × 420,257,140.20
  4. Step 4: Simplify right side
    1,455,362,490.60x = 917,439,717,380,858,112
  5. Step 5: Solve for x
    x = 917,439,717,380,858,112/1,455,362,490.60
  6. Step 6: Final answer
    x = 630,385,710.30

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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.