Finding the Fourth Proportional to 55,638,571.30, 83,398,953.74 and 18,715,310.98
Calculator
Solution
The fourth proportional to 55,638,571.30, 83,398,953.74 and 18,715,310.98 is: 28,053,153.02
Step by Step Solution
- Step 1: Write the proportion equation
55,638,571.30 : 83,398,953.74 = 18,715,310.98 : x - Step 2: Convert to fraction form
55,638,571.30/83,398,953.74 = 18,715,310.98/x - Step 3: Cross multiply
55,638,571.30x = 83,398,953.74 × 18,715,310.98 - Step 4: Simplify right side
55,638,571.30x = 1,560,837,354,650,734 - Step 5: Solve for x
x = 1,560,837,354,650,734/55,638,571.30 - Step 6: Final answer
x = 28,053,153.02
Related Problems
Find fourth proportional to 27,819,285.65, 41,699,476.87 and 9,357,655.49
Half scale
Find fourth proportional to 111,277,142.60, 166,797,907.48 and 37,430,621.96
Double scale
Find fourth proportional to 55,638,572.30, 83,398,955.24 and 18,715,311.98
Similar ratio
Find fourth proportional to 83,457,856.95, 125,098,430.61 and 28,072,966.47
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.