Home / 66,528,093.05-99,792,139.58-21,089,814.65

Finding the Fourth Proportional to 66,528,093.05, 99,792,139.58 and 21,089,814.65

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Solution

The fourth proportional to 66,528,093.05, 99,792,139.58 and 21,089,814.65 is: 31,634,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,093.05 : 99,792,139.58 = 21,089,814.65 : x
  2. Step 2: Convert to fraction form
    66,528,093.05/99,792,139.58 = 21,089,814.65/x
  3. Step 3: Cross multiply
    66,528,093.05x = 99,792,139.58 × 21,089,814.65
  4. Step 4: Simplify right side
    66,528,093.05x = 2,104,597,727,163,679.75
  5. Step 5: Solve for x
    x = 2,104,597,727,163,679.75/66,528,093.05
  6. Step 6: Final answer
    x = 31,634,721.98

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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.