Home / 20,733,121.60-31,099,682.40-9,948,587.20

Finding the Fourth Proportional to 20,733,121.60, 31,099,682.40 and 9,948,587.20

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Solution

The fourth proportional to 20,733,121.60, 31,099,682.40 and 9,948,587.20 is: 14,922,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,121.60 : 31,099,682.40 = 9,948,587.20 : x
  2. Step 2: Convert to fraction form
    20,733,121.60/31,099,682.40 = 9,948,587.20/x
  3. Step 3: Cross multiply
    20,733,121.60x = 31,099,682.40 × 9,948,587.20
  4. Step 4: Simplify right side
    20,733,121.60x = 309,397,902,248,705.25
  5. Step 5: Solve for x
    x = 309,397,902,248,705.25/20,733,121.60
  6. Step 6: Final answer
    x = 14,922,880.80

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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.