Finding the Fourth Proportional to 808,583,759.82, 1,115,845,587.72 and 437,305,790.76
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Solution
The fourth proportional to 808,583,759.82, 1,115,845,587.72 and 437,305,790.76 is: 603,481,990.80
Step by Step Solution
- Step 1: Write the proportion equation
808,583,759.82 : 1,115,845,587.72 = 437,305,790.76 : x - Step 2: Convert to fraction form
808,583,759.82/1,115,845,587.72 = 437,305,790.76/x - Step 3: Cross multiply
808,583,759.82x = 1,115,845,587.72 × 437,305,790.76 - Step 4: Simplify right side
808,583,759.82x = 487,965,737,103,951,552 - Step 5: Solve for x
x = 487,965,737,103,951,552/808,583,759.82 - Step 6: Final answer
x = 603,481,990.80
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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.