Finding the Fourth Proportional to 427,860,060.75, 591,000,751.68 and 353,819,700.63
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Solution
The fourth proportional to 427,860,060.75, 591,000,751.68 and 353,819,700.63 is: 488,729,208.95
Step by Step Solution
- Step 1: Write the proportion equation
427,860,060.75 : 591,000,751.68 = 353,819,700.63 : x - Step 2: Convert to fraction form
427,860,060.75/591,000,751.68 = 353,819,700.63/x - Step 3: Cross multiply
427,860,060.75x = 591,000,751.68 × 353,819,700.63 - Step 4: Simplify right side
427,860,060.75x = 209,107,709,033,483,904 - Step 5: Solve for x
x = 209,107,709,033,483,904/427,860,060.75 - Step 6: Final answer
x = 488,729,208.95
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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.