Finding the Fourth Proportional to 92,827,129.49, 128,073,502.88 and 55,643,842.75
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Solution
The fourth proportional to 92,827,129.49, 128,073,502.88 and 55,643,842.75 is: 76,771,757.28
Step by Step Solution
- Step 1: Write the proportion equation
92,827,129.49 : 128,073,502.88 = 55,643,842.75 : x - Step 2: Convert to fraction form
92,827,129.49/128,073,502.88 = 55,643,842.75/x - Step 3: Cross multiply
92,827,129.49x = 128,073,502.88 × 55,643,842.75 - Step 4: Simplify right side
92,827,129.49x = 7,126,501,854,342,751 - Step 5: Solve for x
x = 7,126,501,854,342,751/92,827,129.49 - Step 6: Final answer
x = 76,771,757.28
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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.