Home / 12,635,712.83-17,435,809.23-7,129,174.88

Finding the Fourth Proportional to 12,635,712.83, 17,435,809.23 and 7,129,174.88

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Solution

The fourth proportional to 12,635,712.83, 17,435,809.23 and 7,129,174.88 is: 9,837,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635,712.83 : 17,435,809.23 = 7,129,174.88 : x
  2. Step 2: Convert to fraction form
    12,635,712.83/17,435,809.23 = 7,129,174.88/x
  3. Step 3: Cross multiply
    12,635,712.83x = 17,435,809.23 × 7,129,174.88
  4. Step 4: Simplify right side
    12,635,712.83x = 124,302,933,174,988.14
  5. Step 5: Solve for x
    x = 124,302,933,174,988.14/12,635,712.83
  6. Step 6: Final answer
    x = 9,837,429.42

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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.