Finding the Fourth Proportional to 99,743,588.91, 137,644,848.98 and 55,691,337.55
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Solution
The fourth proportional to 99,743,588.91, 137,644,848.98 and 55,691,337.55 is: 76,853,317.90
Step by Step Solution
- Step 1: Write the proportion equation
99,743,588.91 : 137,644,848.98 = 55,691,337.55 : x - Step 2: Convert to fraction form
99,743,588.91/137,644,848.98 = 55,691,337.55/x - Step 3: Cross multiply
99,743,588.91x = 137,644,848.98 × 55,691,337.55 - Step 4: Simplify right side
99,743,588.91x = 7,665,625,746,563,952 - Step 5: Solve for x
x = 7,665,625,746,563,952/99,743,588.91 - Step 6: Final answer
x = 76,853,317.90
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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.