Finding the Fourth Proportional to 5,661,201,959.96, 7,812,482,301.99 and 3,120,828,119.01
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Solution
The fourth proportional to 5,661,201,959.96, 7,812,482,301.99 and 3,120,828,119.01 is: 4,306,755,812.60
Step by Step Solution
- Step 1: Write the proportion equation
5,661,201,959.96 : 7,812,482,301.99 = 3,120,828,119.01 : x - Step 2: Convert to fraction form
5,661,201,959.96/7,812,482,301.99 = 3,120,828,119.01/x - Step 3: Cross multiply
5,661,201,959.96x = 7,812,482,301.99 × 3,120,828,119.01 - Step 4: Simplify right side
5,661,201,959.96x = 24,381,414,447,318,368,256 - Step 5: Solve for x
x = 24,381,414,447,318,368,256/5,661,201,959.96 - Step 6: Final answer
x = 4,306,755,812.60
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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.