Finding the Fourth Proportional to 1,582,368,420.75, 2,183,668,440.08 and 887,007,396.75
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Solution
The fourth proportional to 1,582,368,420.75, 2,183,668,440.08 and 887,007,396.75 is: 1,224,070,218.42
Step by Step Solution
- Step 1: Write the proportion equation
1,582,368,420.75 : 2,183,668,440.08 = 887,007,396.75 : x - Step 2: Convert to fraction form
1,582,368,420.75/2,183,668,440.08 = 887,007,396.75/x - Step 3: Cross multiply
1,582,368,420.75x = 2,183,668,440.08 × 887,007,396.75 - Step 4: Simplify right side
1,582,368,420.75x = 1,936,930,058,400,494,080 - Step 5: Solve for x
x = 1,936,930,058,400,494,080/1,582,368,420.75 - Step 6: Final answer
x = 1,224,070,218.42
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Double scale
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1.5x scale
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.