Home / 66,528,087.55-99,792,131.33-21,089,809.15

Finding the Fourth Proportional to 66,528,087.55, 99,792,131.33 and 21,089,809.15

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Solution

The fourth proportional to 66,528,087.55, 99,792,131.33 and 21,089,809.15 is: 31,634,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,087.55 : 99,792,131.33 = 21,089,809.15 : x
  2. Step 2: Convert to fraction form
    66,528,087.55/99,792,131.33 = 21,089,809.15/x
  3. Step 3: Cross multiply
    66,528,087.55x = 99,792,131.33 × 21,089,809.15
  4. Step 4: Simplify right side
    66,528,087.55x = 2,104,597,004,421,435.50
  5. Step 5: Solve for x
    x = 2,104,597,004,421,435.50/66,528,087.55
  6. Step 6: Final answer
    x = 31,634,713.73

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Double scale
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Similar ratio
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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.