Finding the Fourth Proportional to 928,207,316.48, 1,392,449,399.97 and 306,488,219.48
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Solution
The fourth proportional to 928,207,316.48, 1,392,449,399.97 and 306,488,219.48 is: 459,778,036.36
Step by Step Solution
- Step 1: Write the proportion equation
928,207,316.48 : 1,392,449,399.97 = 306,488,219.48 : x - Step 2: Convert to fraction form
928,207,316.48/1,392,449,399.97 = 306,488,219.48/x - Step 3: Cross multiply
928,207,316.48x = 1,392,449,399.97 × 306,488,219.48 - Step 4: Simplify right side
928,207,316.48x = 426,769,337,305,837,440 - Step 5: Solve for x
x = 426,769,337,305,837,440/928,207,316.48 - Step 6: Final answer
x = 459,778,036.36
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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.