Finding the Fourth Proportional to 1,324,505,668.23, 1,827,243,491.76 and 788,356,702.80
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Solution
The fourth proportional to 1,324,505,668.23, 1,827,243,491.76 and 788,356,702.80 is: 1,087,590,403.67
Step by Step Solution
- Step 1: Write the proportion equation
1,324,505,668.23 : 1,827,243,491.76 = 788,356,702.80 : x - Step 2: Convert to fraction form
1,324,505,668.23/1,827,243,491.76 = 788,356,702.80/x - Step 3: Cross multiply
1,324,505,668.23x = 1,827,243,491.76 × 788,356,702.80 - Step 4: Simplify right side
1,324,505,668.23x = 1,440,519,654,376,672,512 - Step 5: Solve for x
x = 1,440,519,654,376,672,512/1,324,505,668.23 - Step 6: Final answer
x = 1,087,590,403.67
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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.