Finding the Fourth Proportional to 10,478,218.77, 15,717,331.71 and 4,714,220.70
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Solution
The fourth proportional to 10,478,218.77, 15,717,331.71 and 4,714,220.70 is: 7,071,332.65
Step by Step Solution
- Step 1: Write the proportion equation
10,478,218.77 : 15,717,331.71 = 4,714,220.70 : x - Step 2: Convert to fraction form
10,478,218.77/15,717,331.71 = 4,714,220.70/x - Step 3: Cross multiply
10,478,218.77x = 15,717,331.71 × 4,714,220.70 - Step 4: Simplify right side
10,478,218.77x = 74,094,970,496,048.41 - Step 5: Solve for x
x = 74,094,970,496,048.41/10,478,218.77 - Step 6: Final answer
x = 7,071,332.65
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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.