Finding the Fourth Proportional to 984,261,161.16, 1,357,640,397.50 and 631,278,048.96
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Solution
The fourth proportional to 984,261,161.16, 1,357,640,397.50 and 631,278,048.96 is: 870,753,226.02
Step by Step Solution
- Step 1: Write the proportion equation
984,261,161.16 : 1,357,640,397.50 = 631,278,048.96 : x - Step 2: Convert to fraction form
984,261,161.16/1,357,640,397.50 = 631,278,048.96/x - Step 3: Cross multiply
984,261,161.16x = 1,357,640,397.50 × 631,278,048.96 - Step 4: Simplify right side
984,261,161.16x = 857,048,581,324,657,152 - Step 5: Solve for x
x = 857,048,581,324,657,152/984,261,161.16 - Step 6: Final answer
x = 870,753,226.02
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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.