Home / 13,103,910.95-18,078,070.56-8,695,715.38

Finding the Fourth Proportional to 13,103,910.95, 18,078,070.56 and 8,695,715.38

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Solution

The fourth proportional to 13,103,910.95, 18,078,070.56 and 8,695,715.38 is: 11,996,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,910.95 : 18,078,070.56 = 8,695,715.38 : x
  2. Step 2: Convert to fraction form
    13,103,910.95/18,078,070.56 = 8,695,715.38/x
  3. Step 3: Cross multiply
    13,103,910.95x = 18,078,070.56 × 8,695,715.38
  4. Step 4: Simplify right side
    13,103,910.95x = 157,201,756,131,513.09
  5. Step 5: Solve for x
    x = 157,201,756,131,513.09/13,103,910.95
  6. Step 6: Final answer
    x = 11,996,552.54

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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.