Home / 13,099,669.36-18,077,667.26-7,219,515.58

Finding the Fourth Proportional to 13,099,669.36, 18,077,667.26 and 7,219,515.58

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Solution

The fourth proportional to 13,099,669.36, 18,077,667.26 and 7,219,515.58 is: 9,962,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099,669.36 : 18,077,667.26 = 7,219,515.58 : x
  2. Step 2: Convert to fraction form
    13,099,669.36/18,077,667.26 = 7,219,515.58/x
  3. Step 3: Cross multiply
    13,099,669.36x = 18,077,667.26 × 7,219,515.58
  4. Step 4: Simplify right side
    13,099,669.36x = 130,512,000,352,334.16
  5. Step 5: Solve for x
    x = 130,512,000,352,334.16/13,099,669.36
  6. Step 6: Final answer
    x = 9,962,999.58

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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.