Home / 384,609,455.64-530,761,517.80-208,397,312

Finding the Fourth Proportional to 384,609,455.64, 530,761,517.80 and 208,397,312

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Solution

The fourth proportional to 384,609,455.64, 530,761,517.80 and 208,397,312 is: 287,588,544.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,609,455.64 : 530,761,517.80 = 208,397,312 : x
  2. Step 2: Convert to fraction form
    384,609,455.64/530,761,517.80 = 208,397,312/x
  3. Step 3: Cross multiply
    384,609,455.64x = 530,761,517.80 × 208,397,312
  4. Step 4: Simplify right side
    384,609,455.64x = 110,609,273,622,560,160
  5. Step 5: Solve for x
    x = 110,609,273,622,560,160/384,609,455.64
  6. Step 6: Final answer
    x = 287,588,544.69

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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.