Home / 384,637,734.78-530,741,363.67-217,312,942.38

Finding the Fourth Proportional to 384,637,734.78, 530,741,363.67 and 217,312,942.38

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Solution

The fourth proportional to 384,637,734.78, 530,741,363.67 and 217,312,942.38 is: 299,858,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,637,734.78 : 530,741,363.67 = 217,312,942.38 : x
  2. Step 2: Convert to fraction form
    384,637,734.78/530,741,363.67 = 217,312,942.38/x
  3. Step 3: Cross multiply
    384,637,734.78x = 530,741,363.67 × 217,312,942.38
  4. Step 4: Simplify right side
    384,637,734.78x = 115,336,967,381,901,344
  5. Step 5: Solve for x
    x = 115,336,967,381,901,344/384,637,734.78
  6. Step 6: Final answer
    x = 299,858,690.28

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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.