Finding the Fourth Proportional to 138,238,726.48, 207,192,752.48 and 64,362,916.24
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Solution
The fourth proportional to 138,238,726.48, 207,192,752.48 and 64,362,916.24 is: 96,467,394.58
Step by Step Solution
- Step 1: Write the proportion equation
138,238,726.48 : 207,192,752.48 = 64,362,916.24 : x - Step 2: Convert to fraction form
138,238,726.48/207,192,752.48 = 64,362,916.24/x - Step 3: Cross multiply
138,238,726.48x = 207,192,752.48 × 64,362,916.24 - Step 4: Simplify right side
138,238,726.48x = 13,335,529,773,048,216 - Step 5: Solve for x
x = 13,335,529,773,048,216/138,238,726.48 - Step 6: Final answer
x = 96,467,394.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.