Home / 421,428,172.94-632,360,225.58-305,796,861.88

Finding the Fourth Proportional to 421,428,172.94, 632,360,225.58 and 305,796,861.88

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Solution

The fourth proportional to 421,428,172.94, 632,360,225.58 and 305,796,861.88 is: 458,853,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,428,172.94 : 632,360,225.58 = 305,796,861.88 : x
  2. Step 2: Convert to fraction form
    421,428,172.94/632,360,225.58 = 305,796,861.88/x
  3. Step 3: Cross multiply
    421,428,172.94x = 632,360,225.58 × 305,796,861.88
  4. Step 4: Simplify right side
    421,428,172.94x = 193,373,772,560,925,440
  5. Step 5: Solve for x
    x = 193,373,772,560,925,440/421,428,172.94
  6. Step 6: Final answer
    x = 458,853,453.51

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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.