Home / 20,112,072.70-30,168,109.05-7,332,994.30

Finding the Fourth Proportional to 20,112,072.70, 30,168,109.05 and 7,332,994.30

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Solution

The fourth proportional to 20,112,072.70, 30,168,109.05 and 7,332,994.30 is: 10,999,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,072.70 : 30,168,109.05 = 7,332,994.30 : x
  2. Step 2: Convert to fraction form
    20,112,072.70/30,168,109.05 = 7,332,994.30/x
  3. Step 3: Cross multiply
    20,112,072.70x = 30,168,109.05 × 7,332,994.30
  4. Step 4: Simplify right side
    20,112,072.70x = 221,222,571,705,428.41
  5. Step 5: Solve for x
    x = 221,222,571,705,428.41/20,112,072.70
  6. Step 6: Final answer
    x = 10,999,491.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.