Finding the Fourth Proportional to 1,125,013,007,007.80, 1,552,651,045,262.80 and 668,273,295,505.40
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Solution
The fourth proportional to 1,125,013,007,007.80, 1,552,651,045,262.80 and 668,273,295,505.40 is: 922,296,208,421.07
Step by Step Solution
- Step 1: Write the proportion equation
1,125,013,007,007.80 : 1,552,651,045,262.80 = 668,273,295,505.40 : x - Step 2: Convert to fraction form
1,125,013,007,007.80/1,552,651,045,262.80 = 668,273,295,505.40/x - Step 3: Cross multiply
1,125,013,007,007.80x = 1,552,651,045,262.80 × 668,273,295,505.40 - Step 4: Simplify right side
1,125,013,007,007.80x = 1,037,595,230,787,675,428,487,168 - Step 5: Solve for x
x = 1,037,595,230,787,675,428,487,168/1,125,013,007,007.80 - Step 6: Final answer
x = 922,296,208,421.07
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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.