Finding the Fourth Proportional to 83,613,613.20, 125,420,419.80 and 22,202,653.20
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Solution
The fourth proportional to 83,613,613.20, 125,420,419.80 and 22,202,653.20 is: 33,303,979.80
Step by Step Solution
- Step 1: Write the proportion equation
83,613,613.20 : 125,420,419.80 = 22,202,653.20 : x - Step 2: Convert to fraction form
83,613,613.20/125,420,419.80 = 22,202,653.20/x - Step 3: Cross multiply
83,613,613.20x = 125,420,419.80 × 22,202,653.20 - Step 4: Simplify right side
83,613,613.20x = 2,784,666,085,017,813 - Step 5: Solve for x
x = 2,784,666,085,017,813/83,613,613.20 - Step 6: Final answer
x = 33,303,979.80
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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.