Finding the Fourth Proportional to 4,865,987.74, 6,714,792.11 and 2,690,400.23
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Solution
The fourth proportional to 4,865,987.74, 6,714,792.11 and 2,690,400.23 is: 3,712,602.50
Step by Step Solution
- Step 1: Write the proportion equation
4,865,987.74 : 6,714,792.11 = 2,690,400.23 : x - Step 2: Convert to fraction form
4,865,987.74/6,714,792.11 = 2,690,400.23/x - Step 3: Cross multiply
4,865,987.74x = 6,714,792.11 × 2,690,400.23 - Step 4: Simplify right side
4,865,987.74x = 18,065,478,223,694.18 - Step 5: Solve for x
x = 18,065,478,223,694.18/4,865,987.74 - Step 6: Final answer
x = 3,712,602.50
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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.