Home / 440,384,409.60-660,140,280.48-206,796,977.28

Finding the Fourth Proportional to 440,384,409.60, 660,140,280.48 and 206,796,977.28

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Solution

The fourth proportional to 440,384,409.60, 660,140,280.48 and 206,796,977.28 is: 309,990,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,384,409.60 : 660,140,280.48 = 206,796,977.28 : x
  2. Step 2: Convert to fraction form
    440,384,409.60/660,140,280.48 = 206,796,977.28/x
  3. Step 3: Cross multiply
    440,384,409.60x = 660,140,280.48 × 206,796,977.28
  4. Step 4: Simplify right side
    440,384,409.60x = 136,515,014,584,035,392
  5. Step 5: Solve for x
    x = 136,515,014,584,035,392/440,384,409.60
  6. Step 6: Final answer
    x = 309,990,570.98

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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.