Finding the Fourth Proportional to 30,416,274.99, 45,548,743.88 and 21,275,572.81
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Solution
The fourth proportional to 30,416,274.99, 45,548,743.88 and 21,275,572.81 is: 31,860,430.55
Step by Step Solution
- Step 1: Write the proportion equation
30,416,274.99 : 45,548,743.88 = 21,275,572.81 : x - Step 2: Convert to fraction form
30,416,274.99/45,548,743.88 = 21,275,572.81/x - Step 3: Cross multiply
30,416,274.99x = 45,548,743.88 × 21,275,572.81 - Step 4: Simplify right side
30,416,274.99x = 969,075,616,822,981.88 - Step 5: Solve for x
x = 969,075,616,822,981.88/30,416,274.99 - Step 6: Final answer
x = 31,860,430.55
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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.