Finding the Fourth Proportional to 521,185,549.46, 781,777,663.99 and 133,008,388.53
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Solution
The fourth proportional to 521,185,549.46, 781,777,663.99 and 133,008,388.53 is: 199,512,414.30
Step by Step Solution
- Step 1: Write the proportion equation
521,185,549.46 : 781,777,663.99 = 133,008,388.53 : x - Step 2: Convert to fraction form
521,185,549.46/781,777,663.99 = 133,008,388.53/x - Step 3: Cross multiply
521,185,549.46x = 781,777,663.99 × 133,008,388.53 - Step 4: Simplify right side
521,185,549.46x = 103,982,987,271,483,792 - Step 5: Solve for x
x = 103,982,987,271,483,792/521,185,549.46 - Step 6: Final answer
x = 199,512,414.30
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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.