Home / 378,638,379.97-568,137,438.38-262,232,871.93

Finding the Fourth Proportional to 378,638,379.97, 568,137,438.38 and 262,232,871.93

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Solution

The fourth proportional to 378,638,379.97, 568,137,438.38 and 262,232,871.93 is: 393,473,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,638,379.97 : 568,137,438.38 = 262,232,871.93 : x
  2. Step 2: Convert to fraction form
    378,638,379.97/568,137,438.38 = 262,232,871.93/x
  3. Step 3: Cross multiply
    378,638,379.97x = 568,137,438.38 × 262,232,871.93
  4. Step 4: Simplify right side
    378,638,379.97x = 148,984,312,117,996,416
  5. Step 5: Solve for x
    x = 148,984,312,117,996,416/378,638,379.97
  6. Step 6: Final answer
    x = 393,473,879.04

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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.