Home / 168,210,432,012.80-252,315,648,019.20-85,653,946,380.80

Finding the Fourth Proportional to 168,210,432,012.80, 252,315,648,019.20 and 85,653,946,380.80

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Solution

The fourth proportional to 168,210,432,012.80, 252,315,648,019.20 and 85,653,946,380.80 is: 128,480,919,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,210,432,012.80 : 252,315,648,019.20 = 85,653,946,380.80 : x
  2. Step 2: Convert to fraction form
    168,210,432,012.80/252,315,648,019.20 = 85,653,946,380.80/x
  3. Step 3: Cross multiply
    168,210,432,012.80x = 252,315,648,019.20 × 85,653,946,380.80
  4. Step 4: Simplify right side
    168,210,432,012.80x = 21,611,830,986,473,362,948,096
  5. Step 5: Solve for x
    x = 21,611,830,986,473,362,948,096/168,210,432,012.80
  6. Step 6: Final answer
    x = 128,480,919,571.20

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Double scale
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Similar ratio
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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.