Finding the Fourth Proportional to 86,423,116.95, 129,677,236.11 and 40,358,291.12
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Solution
The fourth proportional to 86,423,116.95, 129,677,236.11 and 40,358,291.12 is: 60,557,311.88
Step by Step Solution
- Step 1: Write the proportion equation
86,423,116.95 : 129,677,236.11 = 40,358,291.12 : x - Step 2: Convert to fraction form
86,423,116.95/129,677,236.11 = 40,358,291.12/x - Step 3: Cross multiply
86,423,116.95x = 129,677,236.11 × 40,358,291.12 - Step 4: Simplify right side
86,423,116.95x = 5,233,551,646,564,356 - Step 5: Solve for x
x = 5,233,551,646,564,356/86,423,116.95 - Step 6: Final answer
x = 60,557,311.88
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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.