Finding the Fourth Proportional to 767,487,122.46, 1,059,135,398.46 and 415,063,105.74
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Solution
The fourth proportional to 767,487,122.46, 1,059,135,398.46 and 415,063,105.74 is: 572,788,799.99
Step by Step Solution
- Step 1: Write the proportion equation
767,487,122.46 : 1,059,135,398.46 = 415,063,105.74 : x - Step 2: Convert to fraction form
767,487,122.46/1,059,135,398.46 = 415,063,105.74/x - Step 3: Cross multiply
767,487,122.46x = 1,059,135,398.46 × 415,063,105.74 - Step 4: Simplify right side
767,487,122.46x = 439,608,027,883,980,032 - Step 5: Solve for x
x = 439,608,027,883,980,032/767,487,122.46 - Step 6: Final answer
x = 572,788,799.99
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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.