Finding the Fourth Proportional to 478,553,722.30, 717,830,583.45 and 409,678,968.70
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Solution
The fourth proportional to 478,553,722.30, 717,830,583.45 and 409,678,968.70 is: 614,518,453.05
Step by Step Solution
- Step 1: Write the proportion equation
478,553,722.30 : 717,830,583.45 = 409,678,968.70 : x - Step 2: Convert to fraction form
478,553,722.30/717,830,583.45 = 409,678,968.70/x - Step 3: Cross multiply
478,553,722.30x = 717,830,583.45 × 409,678,968.70 - Step 4: Simplify right side
478,553,722.30x = 294,080,093,129,115,328 - Step 5: Solve for x
x = 294,080,093,129,115,328/478,553,722.30 - Step 6: Final answer
x = 614,518,453.05
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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.