Home / 421,441,912.80-632,162,869.20-414,984,904.65

Finding the Fourth Proportional to 421,441,912.80, 632,162,869.20 and 414,984,904.65

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Solution

The fourth proportional to 421,441,912.80, 632,162,869.20 and 414,984,904.65 is: 622,477,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,441,912.80 : 632,162,869.20 = 414,984,904.65 : x
  2. Step 2: Convert to fraction form
    421,441,912.80/632,162,869.20 = 414,984,904.65/x
  3. Step 3: Cross multiply
    421,441,912.80x = 632,162,869.20 × 414,984,904.65
  4. Step 4: Simplify right side
    421,441,912.80x = 262,338,047,998,232,416
  5. Step 5: Solve for x
    x = 262,338,047,998,232,416/421,441,912.80
  6. Step 6: Final answer
    x = 622,477,356.98

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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.