Finding the Fourth Proportional to 1,582,368,406.75, 2,183,668,420.76 and 887,007,382.75
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Solution
The fourth proportional to 1,582,368,406.75, 2,183,668,420.76 and 887,007,382.75 is: 1,224,070,199.09
Step by Step Solution
- Step 1: Write the proportion equation
1,582,368,406.75 : 2,183,668,420.76 = 887,007,382.75 : x - Step 2: Convert to fraction form
1,582,368,406.75/2,183,668,420.76 = 887,007,382.75/x - Step 3: Cross multiply
1,582,368,406.75x = 2,183,668,420.76 × 887,007,382.75 - Step 4: Simplify right side
1,582,368,406.75x = 1,936,930,010,687,718,400 - Step 5: Solve for x
x = 1,936,930,010,687,718,400/1,582,368,406.75 - Step 6: Final answer
x = 1,224,070,199.09
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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.