Finding the Fourth Proportional to 135,477,184.29, 186,943,520.55 and 75,124,660.73
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Solution
The fourth proportional to 135,477,184.29, 186,943,520.55 and 75,124,660.73 is: 103,663,717.47
Step by Step Solution
- Step 1: Write the proportion equation
135,477,184.29 : 186,943,520.55 = 75,124,660.73 : x - Step 2: Convert to fraction form
135,477,184.29/186,943,520.55 = 75,124,660.73/x - Step 3: Cross multiply
135,477,184.29x = 186,943,520.55 × 75,124,660.73 - Step 4: Simplify right side
135,477,184.29x = 14,044,068,556,055,816 - Step 5: Solve for x
x = 14,044,068,556,055,816/135,477,184.29 - Step 6: Final answer
x = 103,663,717.47
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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.