Finding the Fourth Proportional to 391,970,863.36, 540,971,299.52 and 224,772,555.52
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Solution
The fourth proportional to 391,970,863.36, 540,971,299.52 and 224,772,555.52 is: 310,215,663.52
Step by Step Solution
- Step 1: Write the proportion equation
391,970,863.36 : 540,971,299.52 = 224,772,555.52 : x - Step 2: Convert to fraction form
391,970,863.36/540,971,299.52 = 224,772,555.52/x - Step 3: Cross multiply
391,970,863.36x = 540,971,299.52 × 224,772,555.52 - Step 4: Simplify right side
391,970,863.36x = 121,595,501,456,085,744 - Step 5: Solve for x
x = 121,595,501,456,085,744/391,970,863.36 - Step 6: Final answer
x = 310,215,663.52
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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.