Home / 20,666,653.85-28,519,457.40-11,247,044.43

Finding the Fourth Proportional to 20,666,653.85, 28,519,457.40 and 11,247,044.43

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Solution

The fourth proportional to 20,666,653.85, 28,519,457.40 and 11,247,044.43 is: 15,520,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666,653.85 : 28,519,457.40 = 11,247,044.43 : x
  2. Step 2: Convert to fraction form
    20,666,653.85/28,519,457.40 = 11,247,044.43/x
  3. Step 3: Cross multiply
    20,666,653.85x = 28,519,457.40 × 11,247,044.43
  4. Step 4: Simplify right side
    20,666,653.85x = 320,759,604,497,292.25
  5. Step 5: Solve for x
    x = 320,759,604,497,292.25/20,666,653.85
  6. Step 6: Final answer
    x = 15,520,635.65

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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.