Home / 12,999,528.29-17,939,344.96-7,198,308.50

Finding the Fourth Proportional to 12,999,528.29, 17,939,344.96 and 7,198,308.50

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Solution

The fourth proportional to 12,999,528.29, 17,939,344.96 and 7,198,308.50 is: 9,933,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,528.29 : 17,939,344.96 = 7,198,308.50 : x
  2. Step 2: Convert to fraction form
    12,999,528.29/17,939,344.96 = 7,198,308.50/x
  3. Step 3: Cross multiply
    12,999,528.29x = 17,939,344.96 × 7,198,308.50
  4. Step 4: Simplify right side
    12,999,528.29x = 129,132,939,229,301.33
  5. Step 5: Solve for x
    x = 129,132,939,229,301.33/12,999,528.29
  6. Step 6: Final answer
    x = 9,933,663.46

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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.