Home / 20,669,911.12-28,494,912.36-14,539,312.72

Finding the Fourth Proportional to 20,669,911.12, 28,494,912.36 and 14,539,312.72

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Solution

The fourth proportional to 20,669,911.12, 28,494,912.36 and 14,539,312.72 is: 20,043,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,911.12 : 28,494,912.36 = 14,539,312.72 : x
  2. Step 2: Convert to fraction form
    20,669,911.12/28,494,912.36 = 14,539,312.72/x
  3. Step 3: Cross multiply
    20,669,911.12x = 28,494,912.36 × 14,539,312.72
  4. Step 4: Simplify right side
    20,669,911.12x = 414,296,441,731,033.25
  5. Step 5: Solve for x
    x = 414,296,441,731,033.25/20,669,911.12
  6. Step 6: Final answer
    x = 20,043,455.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.