Finding the Fourth Proportional to 894,194,143.18, 1,233,987,976.88 and 497,708,623.92
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Solution
The fourth proportional to 894,194,143.18, 1,233,987,976.88 and 497,708,623.92 is: 686,837,934.02
Step by Step Solution
- Step 1: Write the proportion equation
894,194,143.18 : 1,233,987,976.88 = 497,708,623.92 : x - Step 2: Convert to fraction form
894,194,143.18/1,233,987,976.88 = 497,708,623.92/x - Step 3: Cross multiply
894,194,143.18x = 1,233,987,976.88 × 497,708,623.92 - Step 4: Simplify right side
894,194,143.18x = 614,166,457,910,799,744 - Step 5: Solve for x
x = 614,166,457,910,799,744/894,194,143.18 - Step 6: Final answer
x = 686,837,934.02
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Double scale
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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.