Home / 505,309,371.20-757,964,056.80-160,290,000.80

Finding the Fourth Proportional to 505,309,371.20, 757,964,056.80 and 160,290,000.80

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Solution

The fourth proportional to 505,309,371.20, 757,964,056.80 and 160,290,000.80 is: 240,435,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,309,371.20 : 757,964,056.80 = 160,290,000.80 : x
  2. Step 2: Convert to fraction form
    505,309,371.20/757,964,056.80 = 160,290,000.80/x
  3. Step 3: Cross multiply
    505,309,371.20x = 757,964,056.80 × 160,290,000.80
  4. Step 4: Simplify right side
    505,309,371.20x = 121,494,059,270,843,248
  5. Step 5: Solve for x
    x = 121,494,059,270,843,248/505,309,371.20
  6. Step 6: Final answer
    x = 240,435,001.20

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1.5x scale

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.