Home / 12,998,193.09-17,938,516.37-7,197,514.53

Finding the Fourth Proportional to 12,998,193.09, 17,938,516.37 and 7,197,514.53

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Solution

The fourth proportional to 12,998,193.09, 17,938,516.37 and 7,197,514.53 is: 9,933,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,193.09 : 17,938,516.37 = 7,197,514.53 : x
  2. Step 2: Convert to fraction form
    12,998,193.09/17,938,516.37 = 7,197,514.53/x
  3. Step 3: Cross multiply
    12,998,193.09x = 17,938,516.37 × 7,197,514.53
  4. Step 4: Simplify right side
    12,998,193.09x = 129,112,732,219,717.88
  5. Step 5: Solve for x
    x = 129,112,732,219,717.88/12,998,193.09
  6. Step 6: Final answer
    x = 9,933,129.27

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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.