Finding the Fourth Proportional to 107,839,000.70, 161,758,501.05 and 67,024,331.90
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Solution
The fourth proportional to 107,839,000.70, 161,758,501.05 and 67,024,331.90 is: 100,536,497.85
Step by Step Solution
- Step 1: Write the proportion equation
107,839,000.70 : 161,758,501.05 = 67,024,331.90 : x - Step 2: Convert to fraction form
107,839,000.70/161,758,501.05 = 67,024,331.90/x - Step 3: Cross multiply
107,839,000.70x = 161,758,501.05 × 67,024,331.90 - Step 4: Simplify right side
107,839,000.70x = 10,841,755,462,021,700 - Step 5: Solve for x
x = 10,841,755,462,021,700/107,839,000.70 - Step 6: Final answer
x = 100,536,497.85
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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.