Finding the Fourth Proportional to 775,743,053.64, 1,070,548,021.92 and 423,341,743.12
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Solution
The fourth proportional to 775,743,053.64, 1,070,548,021.92 and 423,341,743.12 is: 584,223,943.19
Step by Step Solution
- Step 1: Write the proportion equation
775,743,053.64 : 1,070,548,021.92 = 423,341,743.12 : x - Step 2: Convert to fraction form
775,743,053.64/1,070,548,021.92 = 423,341,743.12/x - Step 3: Cross multiply
775,743,053.64x = 1,070,548,021.92 × 423,341,743.12 - Step 4: Simplify right side
775,743,053.64x = 453,207,665,697,054,976 - Step 5: Solve for x
x = 453,207,665,697,054,976/775,743,053.64 - Step 6: Final answer
x = 584,223,943.19
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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.