Finding the Fourth Proportional to 129,705,655.05, 178,992,476.87 and 71,759,317.77
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Solution
The fourth proportional to 129,705,655.05, 178,992,476.87 and 71,759,317.77 is: 99,027,124.31
Step by Step Solution
- Step 1: Write the proportion equation
129,705,655.05 : 178,992,476.87 = 71,759,317.77 : x - Step 2: Convert to fraction form
129,705,655.05/178,992,476.87 = 71,759,317.77/x - Step 3: Cross multiply
129,705,655.05x = 178,992,476.87 × 71,759,317.77 - Step 4: Simplify right side
129,705,655.05x = 12,844,378,025,794,908 - Step 5: Solve for x
x = 12,844,378,025,794,908/129,705,655.05 - Step 6: Final answer
x = 99,027,124.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.