Finding the Fourth Proportional to 1,868,558,290.15, 2,577,395,431.11 and 1,198,441,913.08
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Solution
The fourth proportional to 1,868,558,290.15, 2,577,395,431.11 and 1,198,441,913.08 is: 1,653,070,566.49
Step by Step Solution
- Step 1: Write the proportion equation
1,868,558,290.15 : 2,577,395,431.11 = 1,198,441,913.08 : x - Step 2: Convert to fraction form
1,868,558,290.15/2,577,395,431.11 = 1,198,441,913.08/x - Step 3: Cross multiply
1,868,558,290.15x = 2,577,395,431.11 × 1,198,441,913.08 - Step 4: Simplify right side
1,868,558,290.15x = 3,088,858,711,223,119,872 - Step 5: Solve for x
x = 3,088,858,711,223,119,872/1,868,558,290.15 - Step 6: Final answer
x = 1,653,070,566.49
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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.