Finding the Fourth Proportional to 1,219,874,323.12, 1,683,437,088 and 662,957,485.12
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Solution
The fourth proportional to 1,219,874,323.12, 1,683,437,088 and 662,957,485.12 is: 914,887,047.84
Step by Step Solution
- Step 1: Write the proportion equation
1,219,874,323.12 : 1,683,437,088 = 662,957,485.12 : x - Step 2: Convert to fraction form
1,219,874,323.12/1,683,437,088 = 662,957,485.12/x - Step 3: Cross multiply
1,219,874,323.12x = 1,683,437,088 × 662,957,485.12 - Step 4: Simplify right side
1,219,874,323.12x = 1,116,047,218,218,216,192 - Step 5: Solve for x
x = 1,116,047,218,218,216,192/1,219,874,323.12 - Step 6: Final answer
x = 914,887,047.84
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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.