Home / 305,421,263.25-421,477,800.35-166,189,626.15

Finding the Fourth Proportional to 305,421,263.25, 421,477,800.35 and 166,189,626.15

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Solution

The fourth proportional to 305,421,263.25, 421,477,800.35 and 166,189,626.15 is: 229,339,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,421,263.25 : 421,477,800.35 = 166,189,626.15 : x
  2. Step 2: Convert to fraction form
    305,421,263.25/421,477,800.35 = 166,189,626.15/x
  3. Step 3: Cross multiply
    305,421,263.25x = 421,477,800.35 × 166,189,626.15
  4. Step 4: Simplify right side
    305,421,263.25x = 70,045,238,069,859,896
  5. Step 5: Solve for x
    x = 70,045,238,069,859,896/305,421,263.25
  6. Step 6: Final answer
    x = 229,339,756.26

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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.