Finding the Fourth Proportional to 128,328,029.40, 177,046,151.58 and 84,298,736.28
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Solution
The fourth proportional to 128,328,029.40, 177,046,151.58 and 84,298,736.28 is: 116,301,691.15
Step by Step Solution
- Step 1: Write the proportion equation
128,328,029.40 : 177,046,151.58 = 84,298,736.28 : x - Step 2: Convert to fraction form
128,328,029.40/177,046,151.58 = 84,298,736.28/x - Step 3: Cross multiply
128,328,029.40x = 177,046,151.58 × 84,298,736.28 - Step 4: Simplify right side
128,328,029.40x = 14,924,766,841,431,326 - Step 5: Solve for x
x = 14,924,766,841,431,326/128,328,029.40 - Step 6: Final answer
x = 116,301,691.15
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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.