Home / 20,642,706.08-30,960,438.40-7,863,977.60

Finding the Fourth Proportional to 20,642,706.08, 30,960,438.40 and 7,863,977.60

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Solution

The fourth proportional to 20,642,706.08, 30,960,438.40 and 7,863,977.60 is: 11,794,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642,706.08 : 30,960,438.40 = 7,863,977.60 : x
  2. Step 2: Convert to fraction form
    20,642,706.08/30,960,438.40 = 7,863,977.60/x
  3. Step 3: Cross multiply
    20,642,706.08x = 30,960,438.40 × 7,863,977.60
  4. Step 4: Simplify right side
    20,642,706.08x = 243,472,194,063,779.81
  5. Step 5: Solve for x
    x = 243,472,194,063,779.81/20,642,706.08
  6. Step 6: Final answer
    x = 11,794,587.06

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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.