Home / 160,405,259.30-221,353,530-90,789,145.10

Finding the Fourth Proportional to 160,405,259.30, 221,353,530 and 90,789,145.10

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Solution

The fourth proportional to 160,405,259.30, 221,353,530 and 90,789,145.10 is: 125,285,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405,259.30 : 221,353,530 = 90,789,145.10 : x
  2. Step 2: Convert to fraction form
    160,405,259.30/221,353,530 = 90,789,145.10/x
  3. Step 3: Cross multiply
    160,405,259.30x = 221,353,530 × 90,789,145.10
  4. Step 4: Simplify right side
    160,405,259.30x = 20,096,497,753,567,200
  5. Step 5: Solve for x
    x = 20,096,497,753,567,200/160,405,259.30
  6. Step 6: Final answer
    x = 125,285,778.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.