Finding the Fourth Proportional to 115,756,252.68, 159,737,762.35 and 68,715,336.90
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Solution
The fourth proportional to 115,756,252.68, 159,737,762.35 and 68,715,336.90 is: 94,823,682.53
Step by Step Solution
- Step 1: Write the proportion equation
115,756,252.68 : 159,737,762.35 = 68,715,336.90 : x - Step 2: Convert to fraction form
115,756,252.68/159,737,762.35 = 68,715,336.90/x - Step 3: Cross multiply
115,756,252.68x = 159,737,762.35 × 68,715,336.90 - Step 4: Simplify right side
115,756,252.68x = 10,976,434,155,532,386 - Step 5: Solve for x
x = 10,976,434,155,532,386/115,756,252.68 - Step 6: Final answer
x = 94,823,682.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.