Home / 5,378,409.84-7,421,989.72-2,930,968.92

Finding the Fourth Proportional to 5,378,409.84, 7,421,989.72 and 2,930,968.92

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Solution

The fourth proportional to 5,378,409.84, 7,421,989.72 and 2,930,968.92 is: 4,044,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,409.84 : 7,421,989.72 = 2,930,968.92 : x
  2. Step 2: Convert to fraction form
    5,378,409.84/7,421,989.72 = 2,930,968.92/x
  3. Step 3: Cross multiply
    5,378,409.84x = 7,421,989.72 × 2,930,968.92
  4. Step 4: Simplify right side
    5,378,409.84x = 21,753,621,193,879.50
  5. Step 5: Solve for x
    x = 21,753,621,193,879.50/5,378,409.84
  6. Step 6: Final answer
    x = 4,044,619.48

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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.