Finding the Fourth Proportional to 16,787,648.70, 25,181,473.05 and 8,266,221.90
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Solution
The fourth proportional to 16,787,648.70, 25,181,473.05 and 8,266,221.90 is: 12,399,332.85
Step by Step Solution
- Step 1: Write the proportion equation
16,787,648.70 : 25,181,473.05 = 8,266,221.90 : x - Step 2: Convert to fraction form
16,787,648.70/25,181,473.05 = 8,266,221.90/x - Step 3: Cross multiply
16,787,648.70x = 25,181,473.05 × 8,266,221.90 - Step 4: Simplify right side
16,787,648.70x = 208,155,644,000,169.81 - Step 5: Solve for x
x = 208,155,644,000,169.81/16,787,648.70 - Step 6: Final answer
x = 12,399,332.85
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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.