Finding the Fourth Proportional to 637,120,322.80, 879,270,234.83 and 386,235,289.46
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Solution
The fourth proportional to 637,120,322.80, 879,270,234.83 and 386,235,289.46 is: 533,031,487.95
Step by Step Solution
- Step 1: Write the proportion equation
637,120,322.80 : 879,270,234.83 = 386,235,289.46 : x - Step 2: Convert to fraction form
637,120,322.80/879,270,234.83 = 386,235,289.46/x - Step 3: Cross multiply
637,120,322.80x = 879,270,234.83 × 386,235,289.46 - Step 4: Simplify right side
637,120,322.80x = 339,605,193,662,064,000 - Step 5: Solve for x
x = 339,605,193,662,064,000/637,120,322.80 - Step 6: Final answer
x = 533,031,487.95
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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.