Home / 388,135,808.37-581,863,590.32-145,968,773.49

Finding the Fourth Proportional to 388,135,808.37, 581,863,590.32 and 145,968,773.49

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Solution

The fourth proportional to 388,135,808.37, 581,863,590.32 and 145,968,773.49 is: 218,825,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,135,808.37 : 581,863,590.32 = 145,968,773.49 : x
  2. Step 2: Convert to fraction form
    388,135,808.37/581,863,590.32 = 145,968,773.49/x
  3. Step 3: Cross multiply
    388,135,808.37x = 581,863,590.32 × 145,968,773.49
  4. Step 4: Simplify right side
    388,135,808.37x = 84,933,914,616,768,400
  5. Step 5: Solve for x
    x = 84,933,914,616,768,400/388,135,808.37
  6. Step 6: Final answer
    x = 218,825,248.24

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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.