Finding the Fourth Proportional to 85,974,615.73, 128,842,611.74 and 39,173,726.37
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Solution
The fourth proportional to 85,974,615.73, 128,842,611.74 and 39,173,726.37 is: 58,706,225.95
Step by Step Solution
- Step 1: Write the proportion equation
85,974,615.73 : 128,842,611.74 = 39,173,726.37 : x - Step 2: Convert to fraction form
85,974,615.73/128,842,611.74 = 39,173,726.37/x - Step 3: Cross multiply
85,974,615.73x = 128,842,611.74 × 39,173,726.37 - Step 4: Simplify right side
85,974,615.73x = 5,047,245,217,098,909 - Step 5: Solve for x
x = 5,047,245,217,098,909/85,974,615.73 - Step 6: Final answer
x = 58,706,225.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.