Home / 220,338,086.40-330,519,571.20-66,989,145.60

Finding the Fourth Proportional to 220,338,086.40, 330,519,571.20 and 66,989,145.60

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Solution

The fourth proportional to 220,338,086.40, 330,519,571.20 and 66,989,145.60 is: 100,487,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,338,086.40 : 330,519,571.20 = 66,989,145.60 : x
  2. Step 2: Convert to fraction form
    220,338,086.40/330,519,571.20 = 66,989,145.60/x
  3. Step 3: Cross multiply
    220,338,086.40x = 330,519,571.20 × 66,989,145.60
  4. Step 4: Simplify right side
    220,338,086.40x = 22,141,223,678,766,368
  5. Step 5: Solve for x
    x = 22,141,223,678,766,368/220,338,086.40
  6. Step 6: Final answer
    x = 100,487,501.01

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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.