Finding the Fourth Proportional to 76,839,689.63, 115,267,607.57 and 25,028,330.19
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Solution
The fourth proportional to 76,839,689.63, 115,267,607.57 and 25,028,330.19 is: 37,545,124.88
Step by Step Solution
- Step 1: Write the proportion equation
76,839,689.63 : 115,267,607.57 = 25,028,330.19 : x - Step 2: Convert to fraction form
76,839,689.63/115,267,607.57 = 25,028,330.19/x - Step 3: Cross multiply
76,839,689.63x = 115,267,607.57 × 25,028,330.19 - Step 4: Simplify right side
76,839,689.63x = 2,884,955,742,878,892.50 - Step 5: Solve for x
x = 2,884,955,742,878,892.50/76,839,689.63 - Step 6: Final answer
x = 37,545,124.88
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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.