Home / 66,528,090.55-99,792,135.83-21,089,812.15

Finding the Fourth Proportional to 66,528,090.55, 99,792,135.83 and 21,089,812.15

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Solution

The fourth proportional to 66,528,090.55, 99,792,135.83 and 21,089,812.15 is: 31,634,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,090.55 : 99,792,135.83 = 21,089,812.15 : x
  2. Step 2: Convert to fraction form
    66,528,090.55/99,792,135.83 = 21,089,812.15/x
  3. Step 3: Cross multiply
    66,528,090.55x = 99,792,135.83 × 21,089,812.15
  4. Step 4: Simplify right side
    66,528,090.55x = 2,104,597,398,596,535.25
  5. Step 5: Solve for x
    x = 2,104,597,398,596,535.25/66,528,090.55
  6. Step 6: Final answer
    x = 31,634,718.23

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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.