Finding the Fourth Proportional to 992,861,380.84, 1,370,245,484.58 and 741,529,432.84
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Solution
The fourth proportional to 992,861,380.84, 1,370,245,484.58 and 741,529,432.84 is: 1,023,382,897.79
Step by Step Solution
- Step 1: Write the proportion equation
992,861,380.84 : 1,370,245,484.58 = 741,529,432.84 : x - Step 2: Convert to fraction form
992,861,380.84/1,370,245,484.58 = 741,529,432.84/x - Step 3: Cross multiply
992,861,380.84x = 1,370,245,484.58 × 741,529,432.84 - Step 4: Simplify right side
992,861,380.84x = 1,016,077,357,032,178,304 - Step 5: Solve for x
x = 1,016,077,357,032,178,304/992,861,380.84 - Step 6: Final answer
x = 1,023,382,897.79
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Double scale
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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.