Finding the Fourth Proportional to 1,479,765,881.68, 2,218,985,406.93 and 881,785,755.85
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Solution
The fourth proportional to 1,479,765,881.68, 2,218,985,406.93 and 881,785,755.85 is: 1,322,283,307.44
Step by Step Solution
- Step 1: Write the proportion equation
1,479,765,881.68 : 2,218,985,406.93 = 881,785,755.85 : x - Step 2: Convert to fraction form
1,479,765,881.68/2,218,985,406.93 = 881,785,755.85/x - Step 3: Cross multiply
1,479,765,881.68x = 2,218,985,406.93 × 881,785,755.85 - Step 4: Simplify right side
1,479,765,881.68x = 1,956,669,724,269,889,792 - Step 5: Solve for x
x = 1,956,669,724,269,889,792/1,479,765,881.68 - Step 6: Final answer
x = 1,322,283,307.44
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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.