Finding the Fourth Proportional to 405,447,278.04, 559,979,137.08 and 274,840,337.88
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Solution
The fourth proportional to 405,447,278.04, 559,979,137.08 and 274,840,337.88 is: 379,592,769.71
Step by Step Solution
- Step 1: Write the proportion equation
405,447,278.04 : 559,979,137.08 = 274,840,337.88 : x - Step 2: Convert to fraction form
405,447,278.04/559,979,137.08 = 274,840,337.88/x - Step 3: Cross multiply
405,447,278.04x = 559,979,137.08 × 274,840,337.88 - Step 4: Simplify right side
405,447,278.04x = 153,904,855,240,818,048 - Step 5: Solve for x
x = 153,904,855,240,818,048/405,447,278.04 - Step 6: Final answer
x = 379,592,769.71
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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.