Finding the Fourth Proportional to 323,677,964.20, 485,516,946.30 and 286,264,517.80
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Solution
The fourth proportional to 323,677,964.20, 485,516,946.30 and 286,264,517.80 is: 429,396,776.70
Step by Step Solution
- Step 1: Write the proportion equation
323,677,964.20 : 485,516,946.30 = 286,264,517.80 : x - Step 2: Convert to fraction form
323,677,964.20/485,516,946.30 = 286,264,517.80/x - Step 3: Cross multiply
323,677,964.20x = 485,516,946.30 × 286,264,517.80 - Step 4: Simplify right side
323,677,964.20x = 138,986,274,516,298,000 - Step 5: Solve for x
x = 138,986,274,516,298,000/323,677,964.20 - Step 6: Final answer
x = 429,396,776.70
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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.