Home / 13,170,175.07-18,175,328.22-7,209,999.67

Finding the Fourth Proportional to 13,170,175.07, 18,175,328.22 and 7,209,999.67

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Solution

The fourth proportional to 13,170,175.07, 18,175,328.22 and 7,209,999.67 is: 9,950,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170,175.07 : 18,175,328.22 = 7,209,999.67 : x
  2. Step 2: Convert to fraction form
    13,170,175.07/18,175,328.22 = 7,209,999.67/x
  3. Step 3: Cross multiply
    13,170,175.07x = 18,175,328.22 × 7,209,999.67
  4. Step 4: Simplify right side
    13,170,175.07x = 131,044,110,464,023.33
  5. Step 5: Solve for x
    x = 131,044,110,464,023.33/13,170,175.07
  6. Step 6: Final answer
    x = 9,950,065.94

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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.