Home / 405,780,042.98-559,977,544.60-220,141,058.67

Finding the Fourth Proportional to 405,780,042.98, 559,977,544.60 and 220,141,058.67

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Solution

The fourth proportional to 405,780,042.98, 559,977,544.60 and 220,141,058.67 is: 303,795,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,780,042.98 : 559,977,544.60 = 220,141,058.67 : x
  2. Step 2: Convert to fraction form
    405,780,042.98/559,977,544.60 = 220,141,058.67/x
  3. Step 3: Cross multiply
    405,780,042.98x = 559,977,544.60 × 220,141,058.67
  4. Step 4: Simplify right side
    405,780,042.98x = 123,274,049,499,120,768
  5. Step 5: Solve for x
    x = 123,274,049,499,120,768/405,780,042.98
  6. Step 6: Final answer
    x = 303,795,249.74

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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.