Finding the Fourth Proportional to 74,618,388.98, 102,971,997.12 and 40,671,240.88
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Solution
The fourth proportional to 74,618,388.98, 102,971,997.12 and 40,671,240.88 is: 56,125,560.41
Step by Step Solution
- Step 1: Write the proportion equation
74,618,388.98 : 102,971,997.12 = 40,671,240.88 : x - Step 2: Convert to fraction form
74,618,388.98/102,971,997.12 = 40,671,240.88/x - Step 3: Cross multiply
74,618,388.98x = 102,971,997.12 × 40,671,240.88 - Step 4: Simplify right side
74,618,388.98x = 4,187,998,898,762,186.50 - Step 5: Solve for x
x = 4,187,998,898,762,186.50/74,618,388.98 - Step 6: Final answer
x = 56,125,560.41
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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.