Home / 13,990,613.40-19,307,085.78-8,111,390.12

Finding the Fourth Proportional to 13,990,613.40, 19,307,085.78 and 8,111,390.12

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Solution

The fourth proportional to 13,990,613.40, 19,307,085.78 and 8,111,390.12 is: 11,193,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,613.40 : 19,307,085.78 = 8,111,390.12 : x
  2. Step 2: Convert to fraction form
    13,990,613.40/19,307,085.78 = 8,111,390.12/x
  3. Step 3: Cross multiply
    13,990,613.40x = 19,307,085.78 × 8,111,390.12
  4. Step 4: Simplify right side
    13,990,613.40x = 156,607,304,841,884.50
  5. Step 5: Solve for x
    x = 156,607,304,841,884.50/13,990,613.40
  6. Step 6: Final answer
    x = 11,193,741.14

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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.