Finding the Fourth Proportional to 1,331,235,663.84, 1,992,967,984.02 and 776,839,212
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Solution
The fourth proportional to 1,331,235,663.84, 1,992,967,984.02 and 776,839,212 is: 1,162,991,437.43
Step by Step Solution
- Step 1: Write the proportion equation
1,331,235,663.84 : 1,992,967,984.02 = 776,839,212 : x - Step 2: Convert to fraction form
1,331,235,663.84/1,992,967,984.02 = 776,839,212/x - Step 3: Cross multiply
1,331,235,663.84x = 1,992,967,984.02 × 776,839,212 - Step 4: Simplify right side
1,331,235,663.84x = 1,548,215,678,247,325,440 - Step 5: Solve for x
x = 1,548,215,678,247,325,440/1,331,235,663.84 - Step 6: Final answer
x = 1,162,991,437.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.