Finding the Fourth Proportional to 875,027,720.70, 1,312,331,629.05 and 505,764,143.10
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Solution
The fourth proportional to 875,027,720.70, 1,312,331,629.05 and 505,764,143.10 is: 758,524,862.84
Step by Step Solution
- Step 1: Write the proportion equation
875,027,720.70 : 1,312,331,629.05 = 505,764,143.10 : x - Step 2: Convert to fraction form
875,027,720.70/1,312,331,629.05 = 505,764,143.10/x - Step 3: Cross multiply
875,027,720.70x = 1,312,331,629.05 × 505,764,143.10 - Step 4: Simplify right side
875,027,720.70x = 663,730,281,829,500,288 - Step 5: Solve for x
x = 663,730,281,829,500,288/875,027,720.70 - Step 6: Final answer
x = 758,524,862.84
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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.