Finding the Fourth Proportional to 102,789,731.88, 141,881,588.82 and 66,120,306.12
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Solution
The fourth proportional to 102,789,731.88, 141,881,588.82 and 66,120,306.12 is: 91,266,451.56
Step by Step Solution
- Step 1: Write the proportion equation
102,789,731.88 : 141,881,588.82 = 66,120,306.12 : x - Step 2: Convert to fraction form
102,789,731.88/141,881,588.82 = 66,120,306.12/x - Step 3: Cross multiply
102,789,731.88x = 141,881,588.82 × 66,120,306.12 - Step 4: Simplify right side
102,789,731.88x = 9,381,254,085,570,368 - Step 5: Solve for x
x = 9,381,254,085,570,368/102,789,731.88 - Step 6: Final answer
x = 91,266,451.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.