Finding the Fourth Proportional to 474,579,008.70, 664,864,108.50 and 474,579,008.70
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Solution
The fourth proportional to 474,579,008.70, 664,864,108.50 and 474,579,008.70 is: 664,864,108.50
Step by Step Solution
- Step 1: Write the proportion equation
474,579,008.70 : 664,864,108.50 = 474,579,008.70 : x - Step 2: Convert to fraction form
474,579,008.70/664,864,108.50 = 474,579,008.70/x - Step 3: Cross multiply
474,579,008.70x = 664,864,108.50 × 474,579,008.70 - Step 4: Simplify right side
474,579,008.70x = 315,530,549,532,139,264 - Step 5: Solve for x
x = 315,530,549,532,139,264/474,579,008.70 - Step 6: Final answer
x = 664,864,108.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.