Home / 670,311,390.81-1,005,504,852.03-203,987,980.47

Finding the Fourth Proportional to 670,311,390.81, 1,005,504,852.03 and 203,987,980.47

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Solution

The fourth proportional to 670,311,390.81, 1,005,504,852.03 and 203,987,980.47 is: 305,993,463.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,311,390.81 : 1,005,504,852.03 = 203,987,980.47 : x
  2. Step 2: Convert to fraction form
    670,311,390.81/1,005,504,852.03 = 203,987,980.47/x
  3. Step 3: Cross multiply
    670,311,390.81x = 1,005,504,852.03 × 203,987,980.47
  4. Step 4: Simplify right side
    670,311,390.81x = 205,110,904,118,385,888
  5. Step 5: Solve for x
    x = 205,110,904,118,385,888/670,311,390.81
  6. Step 6: Final answer
    x = 305,993,463.53

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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.