Finding the Fourth Proportional to 991,724,592.48, 1,365,464,696.88 and 842,731,455.84
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Solution
The fourth proportional to 991,724,592.48, 1,365,464,696.88 and 842,731,455.84 is: 1,160,322,190.88
Step by Step Solution
- Step 1: Write the proportion equation
991,724,592.48 : 1,365,464,696.88 = 842,731,455.84 : x - Step 2: Convert to fraction form
991,724,592.48/1,365,464,696.88 = 842,731,455.84/x - Step 3: Cross multiply
991,724,592.48x = 1,365,464,696.88 × 842,731,455.84 - Step 4: Simplify right side
991,724,592.48x = 1,150,720,051,899,806,848 - Step 5: Solve for x
x = 1,150,720,051,899,806,848/991,724,592.48 - Step 6: Final answer
x = 1,160,322,190.88
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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.