Finding the Fourth Proportional to 79,107,310.80, 118,660,966.20 and 27,291,813.30
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Solution
The fourth proportional to 79,107,310.80, 118,660,966.20 and 27,291,813.30 is: 40,937,719.95
Step by Step Solution
- Step 1: Write the proportion equation
79,107,310.80 : 118,660,966.20 = 27,291,813.30 : x - Step 2: Convert to fraction form
79,107,310.80/118,660,966.20 = 27,291,813.30/x - Step 3: Cross multiply
79,107,310.80x = 118,660,966.20 × 27,291,813.30 - Step 4: Simplify right side
79,107,310.80x = 3,238,472,935,528,010.50 - Step 5: Solve for x
x = 3,238,472,935,528,010.50/79,107,310.80 - Step 6: Final answer
x = 40,937,719.95
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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.