Finding the Fourth Proportional to 3,991,989,184.22, 5,508,721,913.10 and 2,183,143,824.02
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Solution
The fourth proportional to 3,991,989,184.22, 5,508,721,913.10 and 2,183,143,824.02 is: 3,012,616,434.53
Step by Step Solution
- Step 1: Write the proportion equation
3,991,989,184.22 : 5,508,721,913.10 = 2,183,143,824.02 : x - Step 2: Convert to fraction form
3,991,989,184.22/5,508,721,913.10 = 2,183,143,824.02/x - Step 3: Cross multiply
3,991,989,184.22x = 5,508,721,913.10 × 2,183,143,824.02 - Step 4: Simplify right side
3,991,989,184.22x = 12,026,332,222,827,905,024 - Step 5: Solve for x
x = 12,026,332,222,827,905,024/3,991,989,184.22 - Step 6: Final answer
x = 3,012,616,434.53
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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.