Home / 12,999,528.73-17,939,345.56-7,198,308.93

Finding the Fourth Proportional to 12,999,528.73, 17,939,345.56 and 7,198,308.93

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Solution

The fourth proportional to 12,999,528.73, 17,939,345.56 and 7,198,308.93 is: 9,933,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,528.73 : 17,939,345.56 = 7,198,308.93 : x
  2. Step 2: Convert to fraction form
    12,999,528.73/17,939,345.56 = 7,198,308.93/x
  3. Step 3: Cross multiply
    12,999,528.73x = 17,939,345.56 × 7,198,308.93
  4. Step 4: Simplify right side
    12,999,528.73x = 129,132,951,342,903.83
  5. Step 5: Solve for x
    x = 129,132,951,342,903.83/12,999,528.73
  6. Step 6: Final answer
    x = 9,933,664.06

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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.