Finding the Fourth Proportional to 280,546,045.08, 387,165,499.74 and 156,786,721.08
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Solution
The fourth proportional to 280,546,045.08, 387,165,499.74 and 156,786,721.08 is: 216,372,357.71
Step by Step Solution
- Step 1: Write the proportion equation
280,546,045.08 : 387,165,499.74 = 156,786,721.08 : x - Step 2: Convert to fraction form
280,546,045.08/387,165,499.74 = 156,786,721.08/x - Step 3: Cross multiply
280,546,045.08x = 387,165,499.74 × 156,786,721.08 - Step 4: Simplify right side
280,546,045.08x = 60,702,409,219,534,200 - Step 5: Solve for x
x = 60,702,409,219,534,200/280,546,045.08 - Step 6: Final answer
x = 216,372,357.71
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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.