Finding the Fourth Proportional to 406,266,622.96, 609,320,582.80 and 129,843,688.56
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Solution
The fourth proportional to 406,266,622.96, 609,320,582.80 and 129,843,688.56 is: 194,740,171.88
Step by Step Solution
- Step 1: Write the proportion equation
406,266,622.96 : 609,320,582.80 = 129,843,688.56 : x - Step 2: Convert to fraction form
406,266,622.96/609,320,582.80 = 129,843,688.56/x - Step 3: Cross multiply
406,266,622.96x = 609,320,582.80 × 129,843,688.56 - Step 4: Simplify right side
406,266,622.96x = 79,116,431,986,280,896 - Step 5: Solve for x
x = 79,116,431,986,280,896/406,266,622.96 - Step 6: Final answer
x = 194,740,171.88
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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.