Finding the Fourth Proportional to 699,843,643.80, 1,049,765,465.70 and 239,628,859.80
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Solution
The fourth proportional to 699,843,643.80, 1,049,765,465.70 and 239,628,859.80 is: 359,443,289.70
Step by Step Solution
- Step 1: Write the proportion equation
699,843,643.80 : 1,049,765,465.70 = 239,628,859.80 : x - Step 2: Convert to fraction form
699,843,643.80/1,049,765,465.70 = 239,628,859.80/x - Step 3: Cross multiply
699,843,643.80x = 1,049,765,465.70 × 239,628,859.80 - Step 4: Simplify right side
699,843,643.80x = 251,554,101,603,107,040 - Step 5: Solve for x
x = 251,554,101,603,107,040/699,843,643.80 - Step 6: Final answer
x = 359,443,289.70
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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.