Finding the Fourth Proportional to 4,749,792.68, 7,121,989.87 and 1,869,598.46
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Solution
The fourth proportional to 4,749,792.68, 7,121,989.87 and 1,869,598.46 is: 2,803,335.26
Step by Step Solution
- Step 1: Write the proportion equation
4,749,792.68 : 7,121,989.87 = 1,869,598.46 : x - Step 2: Convert to fraction form
4,749,792.68/7,121,989.87 = 1,869,598.46/x - Step 3: Cross multiply
4,749,792.68x = 7,121,989.87 × 1,869,598.46 - Step 4: Simplify right side
4,749,792.68x = 13,315,261,306,218.58 - Step 5: Solve for x
x = 13,315,261,306,218.58/4,749,792.68 - Step 6: Final answer
x = 2,803,335.26
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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.