Finding the Fourth Proportional to 205,712,625.12, 283,864,658.88 and 122,066,340
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Solution
The fourth proportional to 205,712,625.12, 283,864,658.88 and 122,066,340 is: 168,440,415.09
Step by Step Solution
- Step 1: Write the proportion equation
205,712,625.12 : 283,864,658.88 = 122,066,340 : x - Step 2: Convert to fraction form
205,712,625.12/283,864,658.88 = 122,066,340/x - Step 3: Cross multiply
205,712,625.12x = 283,864,658.88 × 122,066,340 - Step 4: Simplify right side
205,712,625.12x = 34,650,319,964,830,100 - Step 5: Solve for x
x = 34,650,319,964,830,100/205,712,625.12 - Step 6: Final answer
x = 168,440,415.09
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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.