Finding the Fourth Proportional to 268,646,984.80, 402,298,630.80 and 214,899,272.80
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Solution
The fourth proportional to 268,646,984.80, 402,298,630.80 and 214,899,272.80 is: 321,811,477.88
Step by Step Solution
- Step 1: Write the proportion equation
268,646,984.80 : 402,298,630.80 = 214,899,272.80 : x - Step 2: Convert to fraction form
268,646,984.80/402,298,630.80 = 214,899,272.80/x - Step 3: Cross multiply
268,646,984.80x = 402,298,630.80 × 214,899,272.80 - Step 4: Simplify right side
268,646,984.80x = 86,453,683,207,355,696 - Step 5: Solve for x
x = 86,453,683,207,355,696/268,646,984.80 - Step 6: Final answer
x = 321,811,477.88
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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.