Finding the Fourth Proportional to 292,414,000.20, 438,621,000.30 and 246,497,497.80
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Solution
The fourth proportional to 292,414,000.20, 438,621,000.30 and 246,497,497.80 is: 369,746,246.70
Step by Step Solution
- Step 1: Write the proportion equation
292,414,000.20 : 438,621,000.30 = 246,497,497.80 : x - Step 2: Convert to fraction form
292,414,000.20/438,621,000.30 = 246,497,497.80/x - Step 3: Cross multiply
292,414,000.20x = 438,621,000.30 × 246,497,497.80 - Step 4: Simplify right side
292,414,000.20x = 108,118,979,056,483,056 - Step 5: Solve for x
x = 108,118,979,056,483,056/292,414,000.20 - Step 6: Final answer
x = 369,746,246.70
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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.