Home / 66,528,050.80-99,792,076.20-21,089,772.40

Finding the Fourth Proportional to 66,528,050.80, 99,792,076.20 and 21,089,772.40

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Solution

The fourth proportional to 66,528,050.80, 99,792,076.20 and 21,089,772.40 is: 31,634,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,050.80 : 99,792,076.20 = 21,089,772.40 : x
  2. Step 2: Convert to fraction form
    66,528,050.80/99,792,076.20 = 21,089,772.40/x
  3. Step 3: Cross multiply
    66,528,050.80x = 99,792,076.20 × 21,089,772.40
  4. Step 4: Simplify right side
    66,528,050.80x = 2,104,592,174,381,456.75
  5. Step 5: Solve for x
    x = 2,104,592,174,381,456.75/66,528,050.80
  6. Step 6: Final answer
    x = 31,634,658.60

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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.