Home / 13,211,942.69-18,232,443.59-7,332,464.52

Finding the Fourth Proportional to 13,211,942.69, 18,232,443.59 and 7,332,464.52

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Solution

The fourth proportional to 13,211,942.69, 18,232,443.59 and 7,332,464.52 is: 10,118,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211,942.69 : 18,232,443.59 = 7,332,464.52 : x
  2. Step 2: Convert to fraction form
    13,211,942.69/18,232,443.59 = 7,332,464.52/x
  3. Step 3: Cross multiply
    13,211,942.69x = 18,232,443.59 × 7,332,464.52
  4. Step 4: Simplify right side
    13,211,942.69x = 133,688,745,699,914.11
  5. Step 5: Solve for x
    x = 133,688,745,699,914.11/13,211,942.69
  6. Step 6: Final answer
    x = 10,118,780.32

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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.