Finding the Fourth Proportional to 165,402,071.40, 248,103,107.10 and 157,465,885.80
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Solution
The fourth proportional to 165,402,071.40, 248,103,107.10 and 157,465,885.80 is: 236,198,828.70
Step by Step Solution
- Step 1: Write the proportion equation
165,402,071.40 : 248,103,107.10 = 157,465,885.80 : x - Step 2: Convert to fraction form
165,402,071.40/248,103,107.10 = 157,465,885.80/x - Step 3: Cross multiply
165,402,071.40x = 248,103,107.10 × 157,465,885.80 - Step 4: Simplify right side
165,402,071.40x = 39,067,775,529,233,768 - Step 5: Solve for x
x = 39,067,775,529,233,768/165,402,071.40 - Step 6: Final answer
x = 236,198,828.70
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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.