Finding the Fourth Proportional to 113,083,808.80, 169,625,713.20 and 77,252,000.80
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Solution
The fourth proportional to 113,083,808.80, 169,625,713.20 and 77,252,000.80 is: 115,878,001.20
Step by Step Solution
- Step 1: Write the proportion equation
113,083,808.80 : 169,625,713.20 = 77,252,000.80 : x - Step 2: Convert to fraction form
113,083,808.80/169,625,713.20 = 77,252,000.80/x - Step 3: Cross multiply
113,083,808.80x = 169,625,713.20 × 77,252,000.80 - Step 4: Simplify right side
113,083,808.80x = 13,103,925,731,826,970 - Step 5: Solve for x
x = 13,103,925,731,826,970/113,083,808.80 - Step 6: Final answer
x = 115,878,001.20
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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.