Finding the Fourth Proportional to 388,250,092.84, 535,798,348.36 and 229,616,199.91
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Solution
The fourth proportional to 388,250,092.84, 535,798,348.36 and 229,616,199.91 is: 316,878,174.50
Step by Step Solution
- Step 1: Write the proportion equation
388,250,092.84 : 535,798,348.36 = 229,616,199.91 : x - Step 2: Convert to fraction form
388,250,092.84/535,798,348.36 = 229,616,199.91/x - Step 3: Cross multiply
388,250,092.84x = 535,798,348.36 × 229,616,199.91 - Step 4: Simplify right side
388,250,092.84x = 123,027,980,668,477,584 - Step 5: Solve for x
x = 123,027,980,668,477,584/388,250,092.84 - Step 6: Final answer
x = 316,878,174.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.