Home / 384,195,806.67-530,190,100.89-207,983,671.29

Finding the Fourth Proportional to 384,195,806.67, 530,190,100.89 and 207,983,671.29

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Solution

The fourth proportional to 384,195,806.67, 530,190,100.89 and 207,983,671.29 is: 287,017,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,195,806.67 : 530,190,100.89 = 207,983,671.29 : x
  2. Step 2: Convert to fraction form
    384,195,806.67/530,190,100.89 = 207,983,671.29/x
  3. Step 3: Cross multiply
    384,195,806.67x = 530,190,100.89 × 207,983,671.29
  4. Step 4: Simplify right side
    384,195,806.67x = 110,270,883,664,717,696
  5. Step 5: Solve for x
    x = 110,270,883,664,717,696/384,195,806.67
  6. Step 6: Final answer
    x = 287,017,405.58

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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.