Finding the Fourth Proportional to 938,390,198.70, 1,407,585,298.05 and 248,367,204.30
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Solution
The fourth proportional to 938,390,198.70, 1,407,585,298.05 and 248,367,204.30 is: 372,550,806.45
Step by Step Solution
- Step 1: Write the proportion equation
938,390,198.70 : 1,407,585,298.05 = 248,367,204.30 : x - Step 2: Convert to fraction form
938,390,198.70/1,407,585,298.05 = 248,367,204.30/x - Step 3: Cross multiply
938,390,198.70x = 1,407,585,298.05 × 248,367,204.30 - Step 4: Simplify right side
938,390,198.70x = 349,598,025,290,460,736 - Step 5: Solve for x
x = 349,598,025,290,460,736/938,390,198.70 - Step 6: Final answer
x = 372,550,806.45
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1.5x scale
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.