Home / 81,570,147.30-122,355,220.95-47,085,531.30

Finding the Fourth Proportional to 81,570,147.30, 122,355,220.95 and 47,085,531.30

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Solution

The fourth proportional to 81,570,147.30, 122,355,220.95 and 47,085,531.30 is: 70,628,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570,147.30 : 122,355,220.95 = 47,085,531.30 : x
  2. Step 2: Convert to fraction form
    81,570,147.30/122,355,220.95 = 47,085,531.30/x
  3. Step 3: Cross multiply
    81,570,147.30x = 122,355,220.95 × 47,085,531.30
  4. Step 4: Simplify right side
    81,570,147.30x = 5,761,160,585,759,641
  5. Step 5: Solve for x
    x = 5,761,160,585,759,641/81,570,147.30
  6. Step 6: Final answer
    x = 70,628,296.95

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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.