Finding the Fourth Proportional to 107,918,043.12, 148,832,780.64 and 76,493,936.88
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Solution
The fourth proportional to 107,918,043.12, 148,832,780.64 and 76,493,936.88 is: 105,494,920.02
Step by Step Solution
- Step 1: Write the proportion equation
107,918,043.12 : 148,832,780.64 = 76,493,936.88 : x - Step 2: Convert to fraction form
107,918,043.12/148,832,780.64 = 76,493,936.88/x - Step 3: Cross multiply
107,918,043.12x = 148,832,780.64 × 76,493,936.88 - Step 4: Simplify right side
107,918,043.12x = 11,384,805,327,951,044 - Step 5: Solve for x
x = 11,384,805,327,951,044/107,918,043.12 - Step 6: Final answer
x = 105,494,920.02
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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.