Finding the Fourth Proportional to 314,929,264.80, 472,393,897.20 and 216,293,815.20
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Solution
The fourth proportional to 314,929,264.80, 472,393,897.20 and 216,293,815.20 is: 324,440,722.80
Step by Step Solution
- Step 1: Write the proportion equation
314,929,264.80 : 472,393,897.20 = 216,293,815.20 : x - Step 2: Convert to fraction form
314,929,264.80/472,393,897.20 = 216,293,815.20/x - Step 3: Cross multiply
314,929,264.80x = 472,393,897.20 × 216,293,815.20 - Step 4: Simplify right side
314,929,264.80x = 102,175,878,302,584,592 - Step 5: Solve for x
x = 102,175,878,302,584,592/314,929,264.80 - Step 6: Final answer
x = 324,440,722.80
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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.