Finding the Fourth Proportional to 215,683,776.20, 323,525,664.30 and 203,779,497.80
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Solution
The fourth proportional to 215,683,776.20, 323,525,664.30 and 203,779,497.80 is: 305,669,246.70
Step by Step Solution
- Step 1: Write the proportion equation
215,683,776.20 : 323,525,664.30 = 203,779,497.80 : x - Step 2: Convert to fraction form
215,683,776.20/323,525,664.30 = 203,779,497.80/x - Step 3: Cross multiply
215,683,776.20x = 323,525,664.30 × 203,779,497.80 - Step 4: Simplify right side
215,683,776.20x = 65,927,897,396,465,392 - Step 5: Solve for x
x = 65,927,897,396,465,392/215,683,776.20 - Step 6: Final answer
x = 305,669,246.70
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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.