Finding the Fourth Proportional to 4,921,510,610.64, 6,791,726,989.92 and 2,807,073,611.28
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Solution
The fourth proportional to 4,921,510,610.64, 6,791,726,989.92 and 2,807,073,611.28 is: 3,873,785,737.09
Step by Step Solution
- Step 1: Write the proportion equation
4,921,510,610.64 : 6,791,726,989.92 = 2,807,073,611.28 : x - Step 2: Convert to fraction form
4,921,510,610.64/6,791,726,989.92 = 2,807,073,611.28/x - Step 3: Cross multiply
4,921,510,610.64x = 6,791,726,989.92 × 2,807,073,611.28 - Step 4: Simplify right side
4,921,510,610.64x = 19,064,877,608,422,580,224 - Step 5: Solve for x
x = 19,064,877,608,422,580,224/4,921,510,610.64 - Step 6: Final answer
x = 3,873,785,737.09
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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.