Home / 384,375,278.20-530,431,327.98-208,161,841.72

Finding the Fourth Proportional to 384,375,278.20, 530,431,327.98 and 208,161,841.72

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Solution

The fourth proportional to 384,375,278.20, 530,431,327.98 and 208,161,841.72 is: 287,259,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,375,278.20 : 530,431,327.98 = 208,161,841.72 : x
  2. Step 2: Convert to fraction form
    384,375,278.20/530,431,327.98 = 208,161,841.72/x
  3. Step 3: Cross multiply
    384,375,278.20x = 530,431,327.98 × 208,161,841.72
  4. Step 4: Simplify right side
    384,375,278.20x = 110,415,562,138,302,176
  5. Step 5: Solve for x
    x = 110,415,562,138,302,176/384,375,278.20
  6. Step 6: Final answer
    x = 287,259,791.15

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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.