Finding the Fourth Proportional to 386,329,668.80, 579,494,503.20 and 232,896,747.20
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Solution
The fourth proportional to 386,329,668.80, 579,494,503.20 and 232,896,747.20 is: 349,345,120.80
Step by Step Solution
- Step 1: Write the proportion equation
386,329,668.80 : 579,494,503.20 = 232,896,747.20 : x - Step 2: Convert to fraction form
386,329,668.80/579,494,503.20 = 232,896,747.20/x - Step 3: Cross multiply
386,329,668.80x = 579,494,503.20 × 232,896,747.20 - Step 4: Simplify right side
386,329,668.80x = 134,962,384,815,560,000 - Step 5: Solve for x
x = 134,962,384,815,560,000/386,329,668.80 - Step 6: Final answer
x = 349,345,120.80
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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.