Finding the Fourth Proportional to 4,865,988.20, 6,714,792.36 and 2,690,400.68
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Solution
The fourth proportional to 4,865,988.20, 6,714,792.36 and 2,690,400.68 is: 3,712,602.91
Step by Step Solution
- Step 1: Write the proportion equation
4,865,988.20 : 6,714,792.36 = 2,690,400.68 : x - Step 2: Convert to fraction form
4,865,988.20/6,714,792.36 = 2,690,400.68/x - Step 3: Cross multiply
4,865,988.20x = 6,714,792.36 × 2,690,400.68 - Step 4: Simplify right side
4,865,988.20x = 18,065,481,931,402.81 - Step 5: Solve for x
x = 18,065,481,931,402.81/4,865,988.20 - Step 6: Final answer
x = 3,712,602.91
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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.