Home / 253,984,209.92-381,014,171.84-90,208,207.16

Finding the Fourth Proportional to 253,984,209.92, 381,014,171.84 and 90,208,207.16

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Solution

The fourth proportional to 253,984,209.92, 381,014,171.84 and 90,208,207.16 is: 135,325,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,984,209.92 : 381,014,171.84 = 90,208,207.16 : x
  2. Step 2: Convert to fraction form
    253,984,209.92/381,014,171.84 = 90,208,207.16/x
  3. Step 3: Cross multiply
    253,984,209.92x = 381,014,171.84 × 90,208,207.16
  4. Step 4: Simplify right side
    253,984,209.92x = 34,370,605,344,238,556
  5. Step 5: Solve for x
    x = 34,370,605,344,238,556/253,984,209.92
  6. Step 6: Final answer
    x = 135,325,756.49

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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.