Finding the Fourth Proportional to 1,478,525,403.28, 2,040,381,180.84 and 818,486,703.76
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Solution
The fourth proportional to 1,478,525,403.28, 2,040,381,180.84 and 818,486,703.76 is: 1,129,520,577.34
Step by Step Solution
- Step 1: Write the proportion equation
1,478,525,403.28 : 2,040,381,180.84 = 818,486,703.76 : x - Step 2: Convert to fraction form
1,478,525,403.28/2,040,381,180.84 = 818,486,703.76/x - Step 3: Cross multiply
1,478,525,403.28x = 2,040,381,180.84 × 818,486,703.76 - Step 4: Simplify right side
1,478,525,403.28x = 1,670,024,867,119,667,968 - Step 5: Solve for x
x = 1,670,024,867,119,667,968/1,478,525,403.28 - Step 6: Final answer
x = 1,129,520,577.34
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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.