Finding the Fourth Proportional to 66,519,578.80, 99,695,387.40 and 58,961,306.80
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Solution
The fourth proportional to 66,519,578.80, 99,695,387.40 and 58,961,306.80 is: 88,367,521.70
Step by Step Solution
- Step 1: Write the proportion equation
66,519,578.80 : 99,695,387.40 = 58,961,306.80 : x - Step 2: Convert to fraction form
66,519,578.80/99,695,387.40 = 58,961,306.80/x - Step 3: Cross multiply
66,519,578.80x = 99,695,387.40 × 58,961,306.80 - Step 4: Simplify right side
66,519,578.80x = 5,878,170,323,036,254 - Step 5: Solve for x
x = 5,878,170,323,036,254/66,519,578.80 - Step 6: Final answer
x = 88,367,521.70
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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.