Home / 66,528,071.55-99,792,107.33-21,089,793.15

Finding the Fourth Proportional to 66,528,071.55, 99,792,107.33 and 21,089,793.15

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Solution

The fourth proportional to 66,528,071.55, 99,792,107.33 and 21,089,793.15 is: 31,634,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,071.55 : 99,792,107.33 = 21,089,793.15 : x
  2. Step 2: Convert to fraction form
    66,528,071.55/99,792,107.33 = 21,089,793.15/x
  3. Step 3: Cross multiply
    66,528,071.55x = 99,792,107.33 × 21,089,793.15
  4. Step 4: Simplify right side
    66,528,071.55x = 2,104,594,901,486,849.75
  5. Step 5: Solve for x
    x = 2,104,594,901,486,849.75/66,528,071.55
  6. Step 6: Final answer
    x = 31,634,689.73

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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.