Finding the Fourth Proportional to 1,551,895,014.79, 2,328,870,643.51 and 852,875,305.19
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Solution
The fourth proportional to 1,551,895,014.79, 2,328,870,643.51 and 852,875,305.19 is: 1,279,877,982.66
Step by Step Solution
- Step 1: Write the proportion equation
1,551,895,014.79 : 2,328,870,643.51 = 852,875,305.19 : x - Step 2: Convert to fraction form
1,551,895,014.79/2,328,870,643.51 = 852,875,305.19/x - Step 3: Cross multiply
1,551,895,014.79x = 2,328,870,643.51 × 852,875,305.19 - Step 4: Simplify right side
1,551,895,014.79x = 1,986,236,260,831,623,168 - Step 5: Solve for x
x = 1,986,236,260,831,623,168/1,551,895,014.79 - Step 6: Final answer
x = 1,279,877,982.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.