Home / 1,455,362,213.60-2,183,043,320.40-420,256,863.20

Finding the Fourth Proportional to 1,455,362,213.60, 2,183,043,320.40 and 420,256,863.20

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Solution

The fourth proportional to 1,455,362,213.60, 2,183,043,320.40 and 420,256,863.20 is: 630,385,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,362,213.60 : 2,183,043,320.40 = 420,256,863.20 : x
  2. Step 2: Convert to fraction form
    1,455,362,213.60/2,183,043,320.40 = 420,256,863.20/x
  3. Step 3: Cross multiply
    1,455,362,213.60x = 2,183,043,320.40 × 420,256,863.20
  4. Step 4: Simplify right side
    1,455,362,213.60x = 917,438,938,061,016,576
  5. Step 5: Solve for x
    x = 917,438,938,061,016,576/1,455,362,213.60
  6. Step 6: Final answer
    x = 630,385,294.80

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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.