Finding the Fourth Proportional to 2,486,470,732.12, 3,431,340,574.68 and 1,372,645,978.84
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Solution
The fourth proportional to 2,486,470,732.12, 3,431,340,574.68 and 1,372,645,978.84 is: 1,894,257,503.63
Step by Step Solution
- Step 1: Write the proportion equation
2,486,470,732.12 : 3,431,340,574.68 = 1,372,645,978.84 : x - Step 2: Convert to fraction form
2,486,470,732.12/3,431,340,574.68 = 1,372,645,978.84/x - Step 3: Cross multiply
2,486,470,732.12x = 3,431,340,574.68 × 1,372,645,978.84 - Step 4: Simplify right side
2,486,470,732.12x = 4,710,015,841,865,035,776 - Step 5: Solve for x
x = 4,710,015,841,865,035,776/2,486,470,732.12 - Step 6: Final answer
x = 1,894,257,503.63
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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.