Finding the Fourth Proportional to 816,778,944.10, 1,127,250,235.26 and 464,407,732.63
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Solution
The fourth proportional to 816,778,944.10, 1,127,250,235.26 and 464,407,732.63 is: 640,936,852.79
Step by Step Solution
- Step 1: Write the proportion equation
816,778,944.10 : 1,127,250,235.26 = 464,407,732.63 : x - Step 2: Convert to fraction form
816,778,944.10/1,127,250,235.26 = 464,407,732.63/x - Step 3: Cross multiply
816,778,944.10x = 1,127,250,235.26 × 464,407,732.63 - Step 4: Simplify right side
816,778,944.10x = 523,503,725,855,772,416 - Step 5: Solve for x
x = 523,503,725,855,772,416/816,778,944.10 - Step 6: Final answer
x = 640,936,852.79
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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.