Home / 7,239,872.40-10,859,808.60-2,978,624.40

Finding the Fourth Proportional to 7,239,872.40, 10,859,808.60 and 2,978,624.40

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Solution

The fourth proportional to 7,239,872.40, 10,859,808.60 and 2,978,624.40 is: 4,467,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239,872.40 : 10,859,808.60 = 2,978,624.40 : x
  2. Step 2: Convert to fraction form
    7,239,872.40/10,859,808.60 = 2,978,624.40/x
  3. Step 3: Cross multiply
    7,239,872.40x = 10,859,808.60 × 2,978,624.40
  4. Step 4: Simplify right side
    7,239,872.40x = 32,347,290,875,289.84
  5. Step 5: Solve for x
    x = 32,347,290,875,289.84/7,239,872.40
  6. Step 6: Final answer
    x = 4,467,936.60

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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.