Finding the Fourth Proportional to 3,173,218,246.80, 4,759,827,370.20 and 992,404,832.40
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Solution
The fourth proportional to 3,173,218,246.80, 4,759,827,370.20 and 992,404,832.40 is: 1,488,607,248.60
Step by Step Solution
- Step 1: Write the proportion equation
3,173,218,246.80 : 4,759,827,370.20 = 992,404,832.40 : x - Step 2: Convert to fraction form
3,173,218,246.80/4,759,827,370.20 = 992,404,832.40/x - Step 3: Cross multiply
3,173,218,246.80x = 4,759,827,370.20 × 992,404,832.40 - Step 4: Simplify right side
3,173,218,246.80x = 4,723,675,683,576,263,680 - Step 5: Solve for x
x = 4,723,675,683,576,263,680/3,173,218,246.80 - Step 6: Final answer
x = 1,488,607,248.60
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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.