Home / 20,732,364.52-28,621,021.01-12,894,403.24

Finding the Fourth Proportional to 20,732,364.52, 28,621,021.01 and 12,894,403.24

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Solution

The fourth proportional to 20,732,364.52, 28,621,021.01 and 12,894,403.24 is: 17,800,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,364.52 : 28,621,021.01 = 12,894,403.24 : x
  2. Step 2: Convert to fraction form
    20,732,364.52/28,621,021.01 = 12,894,403.24/x
  3. Step 3: Cross multiply
    20,732,364.52x = 28,621,021.01 × 12,894,403.24
  4. Step 4: Simplify right side
    20,732,364.52x = 369,050,986,166,898.94
  5. Step 5: Solve for x
    x = 369,050,986,166,898.94/20,732,364.52
  6. Step 6: Final answer
    x = 17,800,718.57

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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.