Finding the Fourth Proportional to 90,415,932.68, 135,611,129.28 and 28,997,110.28
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Solution
The fourth proportional to 90,415,932.68, 135,611,129.28 and 28,997,110.28 is: 43,491,570.06
Step by Step Solution
- Step 1: Write the proportion equation
90,415,932.68 : 135,611,129.28 = 28,997,110.28 : x - Step 2: Convert to fraction form
90,415,932.68/135,611,129.28 = 28,997,110.28/x - Step 3: Cross multiply
90,415,932.68x = 135,611,129.28 × 28,997,110.28 - Step 4: Simplify right side
90,415,932.68x = 3,932,330,870,927,497 - Step 5: Solve for x
x = 3,932,330,870,927,497/90,415,932.68 - Step 6: Final answer
x = 43,491,570.06
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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.