Finding the Fourth Proportional to 1,118,346,302.24, 1,677,761,603.49 and 428,253,580.82
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Solution
The fourth proportional to 1,118,346,302.24, 1,677,761,603.49 and 428,253,580.82 is: 642,473,098.91
Step by Step Solution
- Step 1: Write the proportion equation
1,118,346,302.24 : 1,677,761,603.49 = 428,253,580.82 : x - Step 2: Convert to fraction form
1,118,346,302.24/1,677,761,603.49 = 428,253,580.82/x - Step 3: Cross multiply
1,118,346,302.24x = 1,677,761,603.49 × 428,253,580.82 - Step 4: Simplify right side
1,118,346,302.24x = 718,507,414,448,508,672 - Step 5: Solve for x
x = 718,507,414,448,508,672/1,118,346,302.24 - Step 6: Final answer
x = 642,473,098.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.