Finding the Fourth Proportional to 598,911,314.20, 898,366,971.30 and 423,559,403.80
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Solution
The fourth proportional to 598,911,314.20, 898,366,971.30 and 423,559,403.80 is: 635,339,105.70
Step by Step Solution
- Step 1: Write the proportion equation
598,911,314.20 : 898,366,971.30 = 423,559,403.80 : x - Step 2: Convert to fraction form
598,911,314.20/898,366,971.30 = 423,559,403.80/x - Step 3: Cross multiply
598,911,314.20x = 898,366,971.30 × 423,559,403.80 - Step 4: Simplify right side
598,911,314.20x = 380,511,778,757,439,680 - Step 5: Solve for x
x = 380,511,778,757,439,680/598,911,314.20 - Step 6: Final answer
x = 635,339,105.70
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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.