Finding the Fourth Proportional to 153,760,392.62, 212,189,204.34 and 86,793,447.14
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Solution
The fourth proportional to 153,760,392.62, 212,189,204.34 and 86,793,447.14 is: 119,774,879.45
Step by Step Solution
- Step 1: Write the proportion equation
153,760,392.62 : 212,189,204.34 = 86,793,447.14 : x - Step 2: Convert to fraction form
153,760,392.62/212,189,204.34 = 86,793,447.14/x - Step 3: Cross multiply
153,760,392.62x = 212,189,204.34 × 86,793,447.14 - Step 4: Simplify right side
153,760,392.62x = 18,416,632,490,562,448 - Step 5: Solve for x
x = 18,416,632,490,562,448/153,760,392.62 - Step 6: Final answer
x = 119,774,879.45
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1.5x scale
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.