Home / 384,613,253.72-530,768,138.28-208,401,202.88

Finding the Fourth Proportional to 384,613,253.72, 530,768,138.28 and 208,401,202.88

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Solution

The fourth proportional to 384,613,253.72, 530,768,138.28 and 208,401,202.88 is: 287,594,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,613,253.72 : 530,768,138.28 = 208,401,202.88 : x
  2. Step 2: Convert to fraction form
    384,613,253.72/530,768,138.28 = 208,401,202.88/x
  3. Step 3: Cross multiply
    384,613,253.72x = 530,768,138.28 × 208,401,202.88
  4. Step 4: Simplify right side
    384,613,253.72x = 110,612,718,467,930,160
  5. Step 5: Solve for x
    x = 110,612,718,467,930,160/384,613,253.72
  6. Step 6: Final answer
    x = 287,594,661.39

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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.