Finding the Fourth Proportional to 871,128,540.86, 1,202,157,559.35 and 474,651,530.42
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Solution
The fourth proportional to 871,128,540.86, 1,202,157,559.35 and 474,651,530.42 is: 655,019,206.22
Step by Step Solution
- Step 1: Write the proportion equation
871,128,540.86 : 1,202,157,559.35 = 474,651,530.42 : x - Step 2: Convert to fraction form
871,128,540.86/1,202,157,559.35 = 474,651,530.42/x - Step 3: Cross multiply
871,128,540.86x = 1,202,157,559.35 × 474,651,530.42 - Step 4: Simplify right side
871,128,540.86x = 570,605,925,345,438,656 - Step 5: Solve for x
x = 570,605,925,345,438,656/871,128,540.86 - Step 6: Final answer
x = 655,019,206.22
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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.