Finding the Fourth Proportional to 1,288,590,073.68, 1,932,532,346.20 and 355,689,906.48
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Solution
The fourth proportional to 1,288,590,073.68, 1,932,532,346.20 and 355,689,906.48 is: 533,437,486.08
Step by Step Solution
- Step 1: Write the proportion equation
1,288,590,073.68 : 1,932,532,346.20 = 355,689,906.48 : x - Step 2: Convert to fraction form
1,288,590,073.68/1,932,532,346.20 = 355,689,906.48/x - Step 3: Cross multiply
1,288,590,073.68x = 1,932,532,346.20 × 355,689,906.48 - Step 4: Simplify right side
1,288,590,073.68x = 687,382,249,489,453,056 - Step 5: Solve for x
x = 687,382,249,489,453,056/1,288,590,073.68 - Step 6: Final answer
x = 533,437,486.08
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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.