Home / 305,421,261.75-421,477,798.28-166,189,624.65

Finding the Fourth Proportional to 305,421,261.75, 421,477,798.28 and 166,189,624.65

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Solution

The fourth proportional to 305,421,261.75, 421,477,798.28 and 166,189,624.65 is: 229,339,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,421,261.75 : 421,477,798.28 = 166,189,624.65 : x
  2. Step 2: Convert to fraction form
    305,421,261.75/421,477,798.28 = 166,189,624.65/x
  3. Step 3: Cross multiply
    305,421,261.75x = 421,477,798.28 × 166,189,624.65
  4. Step 4: Simplify right side
    305,421,261.75x = 70,045,237,093,630,664
  5. Step 5: Solve for x
    x = 70,045,237,093,630,664/305,421,261.75
  6. Step 6: Final answer
    x = 229,339,754.19

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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.