Home / 81,570,144.30-122,355,216.45-47,085,528.30

Finding the Fourth Proportional to 81,570,144.30, 122,355,216.45 and 47,085,528.30

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Solution

The fourth proportional to 81,570,144.30, 122,355,216.45 and 47,085,528.30 is: 70,628,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570,144.30 : 122,355,216.45 = 47,085,528.30 : x
  2. Step 2: Convert to fraction form
    81,570,144.30/122,355,216.45 = 47,085,528.30/x
  3. Step 3: Cross multiply
    81,570,144.30x = 122,355,216.45 × 47,085,528.30
  4. Step 4: Simplify right side
    81,570,144.30x = 5,761,160,006,809,100
  5. Step 5: Solve for x
    x = 5,761,160,006,809,100/81,570,144.30
  6. Step 6: Final answer
    x = 70,628,292.45

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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.