Finding the Fourth Proportional to 157,717,828.80, 236,222,848.80 and 129,406,276.80
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Solution
The fourth proportional to 157,717,828.80, 236,222,848.80 and 129,406,276.80 is: 193,819,047.54
Step by Step Solution
- Step 1: Write the proportion equation
157,717,828.80 : 236,222,848.80 = 129,406,276.80 : x - Step 2: Convert to fraction form
157,717,828.80/236,222,848.80 = 129,406,276.80/x - Step 3: Cross multiply
157,717,828.80x = 236,222,848.80 × 129,406,276.80 - Step 4: Simplify right side
157,717,828.80x = 30,568,719,358,297,348 - Step 5: Solve for x
x = 30,568,719,358,297,348/157,717,828.80 - Step 6: Final answer
x = 193,819,047.54
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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.