Finding the Fourth Proportional to 753,081,153.76, 1,128,974,775.92 and 261,730,591.84
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Solution
The fourth proportional to 753,081,153.76, 1,128,974,775.92 and 261,730,591.84 is: 392,371,041.02
Step by Step Solution
- Step 1: Write the proportion equation
753,081,153.76 : 1,128,974,775.92 = 261,730,591.84 : x - Step 2: Convert to fraction form
753,081,153.76/1,128,974,775.92 = 261,730,591.84/x - Step 3: Cross multiply
753,081,153.76x = 1,128,974,775.92 × 261,730,591.84 - Step 4: Simplify right side
753,081,153.76x = 295,487,236,273,972,992 - Step 5: Solve for x
x = 295,487,236,273,972,992/753,081,153.76 - Step 6: Final answer
x = 392,371,041.02
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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.