Finding the Fourth Proportional to 85,675,412.36, 118,329,414.99 and 57,749,959.28
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Solution
The fourth proportional to 85,675,412.36, 118,329,414.99 and 57,749,959.28 is: 79,760,560.34
Step by Step Solution
- Step 1: Write the proportion equation
85,675,412.36 : 118,329,414.99 = 57,749,959.28 : x - Step 2: Convert to fraction form
85,675,412.36/118,329,414.99 = 57,749,959.28/x - Step 3: Cross multiply
85,675,412.36x = 118,329,414.99 × 57,749,959.28 - Step 4: Simplify right side
85,675,412.36x = 6,833,518,897,298,721 - Step 5: Solve for x
x = 6,833,518,897,298,721/85,675,412.36 - Step 6: Final answer
x = 79,760,560.34
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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.