Home / 13,688,950.36-18,890,751.86-7,577,378.86

Finding the Fourth Proportional to 13,688,950.36, 18,890,751.86 and 7,577,378.86

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Solution

The fourth proportional to 13,688,950.36, 18,890,751.86 and 7,577,378.86 is: 10,456,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,950.36 : 18,890,751.86 = 7,577,378.86 : x
  2. Step 2: Convert to fraction form
    13,688,950.36/18,890,751.86 = 7,577,378.86/x
  3. Step 3: Cross multiply
    13,688,950.36x = 18,890,751.86 × 7,577,378.86
  4. Step 4: Simplify right side
    13,688,950.36x = 143,142,383,793,469.69
  5. Step 5: Solve for x
    x = 143,142,383,793,469.69/13,688,950.36
  6. Step 6: Final answer
    x = 10,456,783.03

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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.