Home / 73,868,128.80-110,802,193.20-67,915,989.60

Finding the Fourth Proportional to 73,868,128.80, 110,802,193.20 and 67,915,989.60

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Solution

The fourth proportional to 73,868,128.80, 110,802,193.20 and 67,915,989.60 is: 101,873,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,868,128.80 : 110,802,193.20 = 67,915,989.60 : x
  2. Step 2: Convert to fraction form
    73,868,128.80/110,802,193.20 = 67,915,989.60/x
  3. Step 3: Cross multiply
    73,868,128.80x = 110,802,193.20 × 67,915,989.60
  4. Step 4: Simplify right side
    73,868,128.80x = 7,525,240,601,028,390
  5. Step 5: Solve for x
    x = 7,525,240,601,028,390/73,868,128.80
  6. Step 6: Final answer
    x = 101,873,984.40

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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.