Finding the Fourth Proportional to 77,845,893.24, 107,449,748.14 and 51,403,551.76
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Solution
The fourth proportional to 77,845,893.24, 107,449,748.14 and 51,403,551.76 is: 70,951,702.91
Step by Step Solution
- Step 1: Write the proportion equation
77,845,893.24 : 107,449,748.14 = 51,403,551.76 : x - Step 2: Convert to fraction form
77,845,893.24/107,449,748.14 = 51,403,551.76/x - Step 3: Cross multiply
77,845,893.24x = 107,449,748.14 × 51,403,551.76 - Step 4: Simplify right side
77,845,893.24x = 5,523,298,690,113,454 - Step 5: Solve for x
x = 5,523,298,690,113,454/77,845,893.24 - Step 6: Final answer
x = 70,951,702.91
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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.