Finding the Fourth Proportional to 151,389,356.41, 208,917,395.94 and 81,774,737.88
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Solution
The fourth proportional to 151,389,356.41, 208,917,395.94 and 81,774,737.88 is: 112,849,183.70
Step by Step Solution
- Step 1: Write the proportion equation
151,389,356.41 : 208,917,395.94 = 81,774,737.88 : x - Step 2: Convert to fraction form
151,389,356.41/208,917,395.94 = 81,774,737.88/x - Step 3: Cross multiply
151,389,356.41x = 208,917,395.94 × 81,774,737.88 - Step 4: Simplify right side
151,389,356.41x = 17,084,165,291,565,676 - Step 5: Solve for x
x = 17,084,165,291,565,676/151,389,356.41 - Step 6: Final answer
x = 112,849,183.70
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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.