Finding the Fourth Proportional to 1,520,720,659.23, 2,282,040,535.14 and 647,320,601.67
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Solution
The fourth proportional to 1,520,720,659.23, 2,282,040,535.14 and 647,320,601.67 is: 971,389,349.70
Step by Step Solution
- Step 1: Write the proportion equation
1,520,720,659.23 : 2,282,040,535.14 = 647,320,601.67 : x - Step 2: Convert to fraction form
1,520,720,659.23/2,282,040,535.14 = 647,320,601.67/x - Step 3: Cross multiply
1,520,720,659.23x = 2,282,040,535.14 × 647,320,601.67 - Step 4: Simplify right side
1,520,720,659.23x = 1,477,211,852,242,153,472 - Step 5: Solve for x
x = 1,477,211,852,242,153,472/1,520,720,659.23 - Step 6: Final answer
x = 971,389,349.70
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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.