Home / 20,851,632.90-31,286,306.70-10,063,380.60

Finding the Fourth Proportional to 20,851,632.90, 31,286,306.70 and 10,063,380.60

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Solution

The fourth proportional to 20,851,632.90, 31,286,306.70 and 10,063,380.60 is: 15,099,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851,632.90 : 31,286,306.70 = 10,063,380.60 : x
  2. Step 2: Convert to fraction form
    20,851,632.90/31,286,306.70 = 10,063,380.60/x
  3. Step 3: Cross multiply
    20,851,632.90x = 31,286,306.70 × 10,063,380.60
  4. Step 4: Simplify right side
    20,851,632.90x = 314,846,011,890,430
  5. Step 5: Solve for x
    x = 314,846,011,890,430/20,851,632.90
  6. Step 6: Final answer
    x = 15,099,345.62

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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.