Home / 72,033,568.67-99,339,168.07-66,683,281.07

Finding the Fourth Proportional to 72,033,568.67, 99,339,168.07 and 66,683,281.07

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Solution

The fourth proportional to 72,033,568.67, 99,339,168.07 and 66,683,281.07 is: 91,960,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,033,568.67 : 99,339,168.07 = 66,683,281.07 : x
  2. Step 2: Convert to fraction form
    72,033,568.67/99,339,168.07 = 66,683,281.07/x
  3. Step 3: Cross multiply
    72,033,568.67x = 99,339,168.07 × 66,683,281.07
  4. Step 4: Simplify right side
    72,033,568.67x = 6,624,261,665,671,779
  5. Step 5: Solve for x
    x = 6,624,261,665,671,779/72,033,568.67
  6. Step 6: Final answer
    x = 91,960,759.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.