Finding the Fourth Proportional to 248,988,005.38, 343,605,108.54 and 135,958,281.98
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Solution
The fourth proportional to 248,988,005.38, 343,605,108.54 and 135,958,281.98 is: 187,623,336.17
Step by Step Solution
- Step 1: Write the proportion equation
248,988,005.38 : 343,605,108.54 = 135,958,281.98 : x - Step 2: Convert to fraction form
248,988,005.38/343,605,108.54 = 135,958,281.98/x - Step 3: Cross multiply
248,988,005.38x = 343,605,108.54 × 135,958,281.98 - Step 4: Simplify right side
248,988,005.38x = 46,715,960,234,931,800 - Step 5: Solve for x
x = 46,715,960,234,931,800/248,988,005.38 - Step 6: Final answer
x = 187,623,336.17
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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.