Home / 384,476,498.07-530,580,114.89-208,264,493.43

Finding the Fourth Proportional to 384,476,498.07, 530,580,114.89 and 208,264,493.43

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Solution

The fourth proportional to 384,476,498.07, 530,580,114.89 and 208,264,493.43 is: 287,406,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,476,498.07 : 530,580,114.89 = 208,264,493.43 : x
  2. Step 2: Convert to fraction form
    384,476,498.07/530,580,114.89 = 208,264,493.43/x
  3. Step 3: Cross multiply
    384,476,498.07x = 530,580,114.89 × 208,264,493.43
  4. Step 4: Simplify right side
    384,476,498.07x = 110,500,998,850,555,728
  5. Step 5: Solve for x
    x = 110,500,998,850,555,728/384,476,498.07
  6. Step 6: Final answer
    x = 287,406,380.90

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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.