Home / 20,616,774.47-28,450,369.26-11,450,007.71

Finding the Fourth Proportional to 20,616,774.47, 28,450,369.26 and 11,450,007.71

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Solution

The fourth proportional to 20,616,774.47, 28,450,369.26 and 11,450,007.71 is: 15,800,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,774.47 : 28,450,369.26 = 11,450,007.71 : x
  2. Step 2: Convert to fraction form
    20,616,774.47/28,450,369.26 = 11,450,007.71/x
  3. Step 3: Cross multiply
    20,616,774.47x = 28,450,369.26 × 11,450,007.71
  4. Step 4: Simplify right side
    20,616,774.47x = 325,756,947,379,347.06
  5. Step 5: Solve for x
    x = 325,756,947,379,347.06/20,616,774.47
  6. Step 6: Final answer
    x = 15,800,577.72

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1.5x scale

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.