Home / 213,734,078.34-320,808,434.04-103,147,572.69

Finding the Fourth Proportional to 213,734,078.34, 320,808,434.04 and 103,147,572.69

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Solution

The fourth proportional to 213,734,078.34, 320,808,434.04 and 103,147,572.69 is: 154,821,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,734,078.34 : 320,808,434.04 = 103,147,572.69 : x
  2. Step 2: Convert to fraction form
    213,734,078.34/320,808,434.04 = 103,147,572.69/x
  3. Step 3: Cross multiply
    213,734,078.34x = 320,808,434.04 × 103,147,572.69
  4. Step 4: Simplify right side
    213,734,078.34x = 33,090,611,269,705,972
  5. Step 5: Solve for x
    x = 33,090,611,269,705,972/213,734,078.34
  6. Step 6: Final answer
    x = 154,821,409.51

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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.