Finding the Fourth Proportional to 86,611,538.90, 129,946,313.15 and 28,321,904.99
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Solution
The fourth proportional to 86,611,538.90, 129,946,313.15 and 28,321,904.99 is: 42,492,342.03
Step by Step Solution
- Step 1: Write the proportion equation
86,611,538.90 : 129,946,313.15 = 28,321,904.99 : x - Step 2: Convert to fraction form
86,611,538.90/129,946,313.15 = 28,321,904.99/x - Step 3: Cross multiply
86,611,538.90x = 129,946,313.15 × 28,321,904.99 - Step 4: Simplify right side
86,611,538.90x = 3,680,327,134,043,746.50 - Step 5: Solve for x
x = 3,680,327,134,043,746.50/86,611,538.90 - Step 6: Final answer
x = 42,492,342.03
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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.