Finding the Fourth Proportional to 149,121,710.02, 205,681,954.34 and 99,537,083.74
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Solution
The fourth proportional to 149,121,710.02, 205,681,954.34 and 99,537,083.74 is: 137,290,418.07
Step by Step Solution
- Step 1: Write the proportion equation
149,121,710.02 : 205,681,954.34 = 99,537,083.74 : x - Step 2: Convert to fraction form
149,121,710.02/205,681,954.34 = 99,537,083.74/x - Step 3: Cross multiply
149,121,710.02x = 205,681,954.34 × 99,537,083.74 - Step 4: Simplify right side
149,121,710.02x = 20,472,981,912,449,752 - Step 5: Solve for x
x = 20,472,981,912,449,752/149,121,710.02 - Step 6: Final answer
x = 137,290,418.07
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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.