Finding the Fourth Proportional to 1,433,489,669,728.20, 1,978,216,537,919.90 and 774,295,743,055.44
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Solution
The fourth proportional to 1,433,489,669,728.20, 1,978,216,537,919.90 and 774,295,743,055.44 is: 1,068,528,554,128.80
Step by Step Solution
- Step 1: Write the proportion equation
1,433,489,669,728.20 : 1,978,216,537,919.90 = 774,295,743,055.44 : x - Step 2: Convert to fraction form
1,433,489,669,728.20/1,978,216,537,919.90 = 774,295,743,055.44/x - Step 3: Cross multiply
1,433,489,669,728.20x = 1,978,216,537,919.90 × 774,295,743,055.44 - Step 4: Simplify right side
1,433,489,669,728.20x = 1,531,724,644,153,248,710,656,000 - Step 5: Solve for x
x = 1,531,724,644,153,248,710,656,000/1,433,489,669,728.20 - Step 6: Final answer
x = 1,068,528,554,128.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.