Home / 20,836,533.42-31,255,981.25-6,461,644.86

Finding the Fourth Proportional to 20,836,533.42, 31,255,981.25 and 6,461,644.86

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Solution

The fourth proportional to 20,836,533.42, 31,255,981.25 and 6,461,644.86 is: 9,692,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,533.42 : 31,255,981.25 = 6,461,644.86 : x
  2. Step 2: Convert to fraction form
    20,836,533.42/31,255,981.25 = 6,461,644.86/x
  3. Step 3: Cross multiply
    20,836,533.42x = 31,255,981.25 × 6,461,644.86
  4. Step 4: Simplify right side
    20,836,533.42x = 201,965,050,556,010.66
  5. Step 5: Solve for x
    x = 201,965,050,556,010.66/20,836,533.42
  6. Step 6: Final answer
    x = 9,692,833.57

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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.