Home / 289,776,431.44-399,855,155.16-195,894,820

Finding the Fourth Proportional to 289,776,431.44, 399,855,155.16 and 195,894,820

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Solution

The fourth proportional to 289,776,431.44, 399,855,155.16 and 195,894,820 is: 270,310,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,776,431.44 : 399,855,155.16 = 195,894,820 : x
  2. Step 2: Convert to fraction form
    289,776,431.44/399,855,155.16 = 195,894,820/x
  3. Step 3: Cross multiply
    289,776,431.44x = 399,855,155.16 × 195,894,820
  4. Step 4: Simplify right side
    289,776,431.44x = 78,329,553,646,140,272
  5. Step 5: Solve for x
    x = 78,329,553,646,140,272/289,776,431.44
  6. Step 6: Final answer
    x = 270,310,298.38

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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.