Finding the Fourth Proportional to 40,166,098,862.23, 55,427,551,953.35 and 21,855,232,143.28
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Solution
The fourth proportional to 40,166,098,862.23, 55,427,551,953.35 and 21,855,232,143.28 is: 30,159,314,680.50
Step by Step Solution
- Step 1: Write the proportion equation
40,166,098,862.23 : 55,427,551,953.35 = 21,855,232,143.28 : x - Step 2: Convert to fraction form
40,166,098,862.23/55,427,551,953.35 = 21,855,232,143.28/x - Step 3: Cross multiply
40,166,098,862.23x = 55,427,551,953.35 × 21,855,232,143.28 - Step 4: Simplify right side
40,166,098,862.23x = 1,211,382,015,073,790,722,048 - Step 5: Solve for x
x = 1,211,382,015,073,790,722,048/40,166,098,862.23 - Step 6: Final answer
x = 30,159,314,680.50
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1.5x scale
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.