Finding the Fourth Proportional to 472,407,908.40, 708,611,862.60 and 268,334,564.40
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Solution
The fourth proportional to 472,407,908.40, 708,611,862.60 and 268,334,564.40 is: 402,501,846.60
Step by Step Solution
- Step 1: Write the proportion equation
472,407,908.40 : 708,611,862.60 = 268,334,564.40 : x - Step 2: Convert to fraction form
472,407,908.40/708,611,862.60 = 268,334,564.40/x - Step 3: Cross multiply
472,407,908.40x = 708,611,862.60 × 268,334,564.40 - Step 4: Simplify right side
472,407,908.40x = 190,145,055,479,443,648 - Step 5: Solve for x
x = 190,145,055,479,443,648/472,407,908.40 - Step 6: Final answer
x = 402,501,846.60
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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.