Home / 18,678,001.80-28,001,450.70-7,903,576.20

Finding the Fourth Proportional to 18,678,001.80, 28,001,450.70 and 7,903,576.20

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Solution

The fourth proportional to 18,678,001.80, 28,001,450.70 and 7,903,576.20 is: 11,848,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,001.80 : 28,001,450.70 = 7,903,576.20 : x
  2. Step 2: Convert to fraction form
    18,678,001.80/28,001,450.70 = 7,903,576.20/x
  3. Step 3: Cross multiply
    18,678,001.80x = 28,001,450.70 × 7,903,576.20
  4. Step 4: Simplify right side
    18,678,001.80x = 221,311,599,317,993.34
  5. Step 5: Solve for x
    x = 221,311,599,317,993.34/18,678,001.80
  6. Step 6: Final answer
    x = 11,848,783.49

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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.