Home / 12,802,408.40-17,668,994.76-7,370,129.36

Finding the Fourth Proportional to 12,802,408.40, 17,668,994.76 and 7,370,129.36

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Solution

The fourth proportional to 12,802,408.40, 17,668,994.76 and 7,370,129.36 is: 10,171,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802,408.40 : 17,668,994.76 = 7,370,129.36 : x
  2. Step 2: Convert to fraction form
    12,802,408.40/17,668,994.76 = 7,370,129.36/x
  3. Step 3: Cross multiply
    12,802,408.40x = 17,668,994.76 × 7,370,129.36
  4. Step 4: Simplify right side
    12,802,408.40x = 130,222,777,042,362.17
  5. Step 5: Solve for x
    x = 130,222,777,042,362.17/12,802,408.40
  6. Step 6: Final answer
    x = 10,171,740.58

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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.