Home / 1,455,362,401.60-2,183,043,602.40-420,257,051.20

Finding the Fourth Proportional to 1,455,362,401.60, 2,183,043,602.40 and 420,257,051.20

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Solution

The fourth proportional to 1,455,362,401.60, 2,183,043,602.40 and 420,257,051.20 is: 630,385,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,362,401.60 : 2,183,043,602.40 = 420,257,051.20 : x
  2. Step 2: Convert to fraction form
    1,455,362,401.60/2,183,043,602.40 = 420,257,051.20/x
  3. Step 3: Cross multiply
    1,455,362,401.60x = 2,183,043,602.40 × 420,257,051.20
  4. Step 4: Simplify right side
    1,455,362,401.60x = 917,439,466,985,649,280
  5. Step 5: Solve for x
    x = 917,439,466,985,649,280/1,455,362,401.60
  6. Step 6: Final answer
    x = 630,385,576.80

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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.