Finding the Fourth Proportional to 1,223,657,351,836.70, 1,688,652,395,399.60 and 667,474,599,322.95
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Solution
The fourth proportional to 1,223,657,351,836.70, 1,688,652,395,399.60 and 667,474,599,322.95 is: 921,117,810,736.21
Step by Step Solution
- Step 1: Write the proportion equation
1,223,657,351,836.70 : 1,688,652,395,399.60 = 667,474,599,322.95 : x - Step 2: Convert to fraction form
1,223,657,351,836.70/1,688,652,395,399.60 = 667,474,599,322.95/x - Step 3: Cross multiply
1,223,657,351,836.70x = 1,688,652,395,399.60 × 667,474,599,322.95 - Step 4: Simplify right side
1,223,657,351,836.70x = 1,127,132,581,015,087,675,867,136 - Step 5: Solve for x
x = 1,127,132,581,015,087,675,867,136/1,223,657,351,836.70 - Step 6: Final answer
x = 921,117,810,736.21
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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.