Finding the Fourth Proportional to 128,957,734.98, 193,462,131.77 and 36,842,257.26
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Solution
The fourth proportional to 128,957,734.98, 193,462,131.77 and 36,842,257.26 is: 55,270,679.42
Step by Step Solution
- Step 1: Write the proportion equation
128,957,734.98 : 193,462,131.77 = 36,842,257.26 : x - Step 2: Convert to fraction form
128,957,734.98/193,462,131.77 = 36,842,257.26/x - Step 3: Cross multiply
128,957,734.98x = 193,462,131.77 × 36,842,257.26 - Step 4: Simplify right side
128,957,734.98x = 7,127,581,628,738,359 - Step 5: Solve for x
x = 7,127,581,628,738,359/128,957,734.98 - Step 6: Final answer
x = 55,270,679.42
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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.