Finding the Fourth Proportional to 5,228,746.70, 7,841,356.79 and 1,989,515.39
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Solution
The fourth proportional to 5,228,746.70, 7,841,356.79 and 1,989,515.39 is: 2,983,602.17
Step by Step Solution
- Step 1: Write the proportion equation
5,228,746.70 : 7,841,356.79 = 1,989,515.39 : x - Step 2: Convert to fraction form
5,228,746.70/7,841,356.79 = 1,989,515.39/x - Step 3: Cross multiply
5,228,746.70x = 7,841,356.79 × 1,989,515.39 - Step 4: Simplify right side
5,228,746.70x = 15,600,500,012,186.00 - Step 5: Solve for x
x = 15,600,500,012,186.00/5,228,746.70 - Step 6: Final answer
x = 2,983,602.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.