Finding the Fourth Proportional to 1,064,995,367.70, 1,469,839,606.98 and 612,864,043.08
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Solution
The fourth proportional to 1,064,995,367.70, 1,469,839,606.98 and 612,864,043.08 is: 845,836,396.60
Step by Step Solution
- Step 1: Write the proportion equation
1,064,995,367.70 : 1,469,839,606.98 = 612,864,043.08 : x - Step 2: Convert to fraction form
1,064,995,367.70/1,469,839,606.98 = 612,864,043.08/x - Step 3: Cross multiply
1,064,995,367.70x = 1,469,839,606.98 × 612,864,043.08 - Step 4: Simplify right side
1,064,995,367.70x = 900,811,844,212,881,024 - Step 5: Solve for x
x = 900,811,844,212,881,024/1,064,995,367.70 - Step 6: Final answer
x = 845,836,396.60
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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.