Home / 20,455,106.46-28,229,642.55-11,756,315.58

Finding the Fourth Proportional to 20,455,106.46, 28,229,642.55 and 11,756,315.58

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Solution

The fourth proportional to 20,455,106.46, 28,229,642.55 and 11,756,315.58 is: 16,224,632.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,106.46 : 28,229,642.55 = 11,756,315.58 : x
  2. Step 2: Convert to fraction form
    20,455,106.46/28,229,642.55 = 11,756,315.58/x
  3. Step 3: Cross multiply
    20,455,106.46x = 28,229,642.55 × 11,756,315.58
  4. Step 4: Simplify right side
    20,455,106.46x = 331,876,586,528,395.94
  5. Step 5: Solve for x
    x = 331,876,586,528,395.94/20,455,106.46
  6. Step 6: Final answer
    x = 16,224,632.57

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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.