Home / 519,705,038.37-779,302,464.78-257,086,161.21

Finding the Fourth Proportional to 519,705,038.37, 779,302,464.78 and 257,086,161.21

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Solution

The fourth proportional to 519,705,038.37, 779,302,464.78 and 257,086,161.21 is: 385,503,053.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,705,038.37 : 779,302,464.78 = 257,086,161.21 : x
  2. Step 2: Convert to fraction form
    519,705,038.37/779,302,464.78 = 257,086,161.21/x
  3. Step 3: Cross multiply
    519,705,038.37x = 779,302,464.78 × 257,086,161.21
  4. Step 4: Simplify right side
    519,705,038.37x = 200,347,879,091,781,440
  5. Step 5: Solve for x
    x = 200,347,879,091,781,440/519,705,038.37
  6. Step 6: Final answer
    x = 385,503,053.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.