Finding the Fourth Proportional to 5,047,602,829.20, 7,571,404,243.80 and 4,187,639,437.20
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Solution
The fourth proportional to 5,047,602,829.20, 7,571,404,243.80 and 4,187,639,437.20 is: 6,281,459,155.80
Step by Step Solution
- Step 1: Write the proportion equation
5,047,602,829.20 : 7,571,404,243.80 = 4,187,639,437.20 : x - Step 2: Convert to fraction form
5,047,602,829.20/7,571,404,243.80 = 4,187,639,437.20/x - Step 3: Cross multiply
5,047,602,829.20x = 7,571,404,243.80 × 4,187,639,437.20 - Step 4: Simplify right side
5,047,602,829.20x = 31,706,311,006,320,324,608 - Step 5: Solve for x
x = 31,706,311,006,320,324,608/5,047,602,829.20 - Step 6: Final answer
x = 6,281,459,155.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.