Finding the Fourth Proportional to 554,646,528.48, 765,412,035.12 and 307,127,817.12
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Solution
The fourth proportional to 554,646,528.48, 765,412,035.12 and 307,127,817.12 is: 423,836,291.17
Step by Step Solution
- Step 1: Write the proportion equation
554,646,528.48 : 765,412,035.12 = 307,127,817.12 : x - Step 2: Convert to fraction form
554,646,528.48/765,412,035.12 = 307,127,817.12/x - Step 3: Cross multiply
554,646,528.48x = 765,412,035.12 × 307,127,817.12 - Step 4: Simplify right side
554,646,528.48x = 235,079,327,543,782,368 - Step 5: Solve for x
x = 235,079,327,543,782,368/554,646,528.48 - Step 6: Final answer
x = 423,836,291.17
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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.