Finding the Fourth Proportional to 117,039,486,449.21, 161,514,365,813.92 and 63,575,498,916.41
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Solution
The fourth proportional to 117,039,486,449.21, 161,514,365,813.92 and 63,575,498,916.41 is: 87,734,120,341.03
Step by Step Solution
- Step 1: Write the proportion equation
117,039,486,449.21 : 161,514,365,813.92 = 63,575,498,916.41 : x - Step 2: Convert to fraction form
117,039,486,449.21/161,514,365,813.92 = 63,575,498,916.41/x - Step 3: Cross multiply
117,039,486,449.21x = 161,514,365,813.92 × 63,575,498,916.41 - Step 4: Simplify right side
117,039,486,449.21x = 10,268,356,388,787,520,012,288 - Step 5: Solve for x
x = 10,268,356,388,787,520,012,288/117,039,486,449.21 - Step 6: Final answer
x = 87,734,120,341.03
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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.