Finding the Fourth Proportional to 819,362,344.92, 1,130,823,326.28 and 537,341,958.96
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Solution
The fourth proportional to 819,362,344.92, 1,130,823,326.28 and 537,341,958.96 is: 741,599,641.66
Step by Step Solution
- Step 1: Write the proportion equation
819,362,344.92 : 1,130,823,326.28 = 537,341,958.96 : x - Step 2: Convert to fraction form
819,362,344.92/1,130,823,326.28 = 537,341,958.96/x - Step 3: Cross multiply
819,362,344.92x = 1,130,823,326.28 × 537,341,958.96 - Step 4: Simplify right side
819,362,344.92x = 607,638,821,380,958,464 - Step 5: Solve for x
x = 607,638,821,380,958,464/819,362,344.92 - Step 6: Final answer
x = 741,599,641.66
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Double scale
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Similar ratio
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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.