Finding the Fourth Proportional to 992,861,246.42, 1,370,245,299.16 and 741,529,298.28
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Solution
The fourth proportional to 992,861,246.42, 1,370,245,299.16 and 741,529,298.28 is: 1,023,382,712.16
Step by Step Solution
- Step 1: Write the proportion equation
992,861,246.42 : 1,370,245,299.16 = 741,529,298.28 : x - Step 2: Convert to fraction form
992,861,246.42/1,370,245,299.16 = 741,529,298.28/x - Step 3: Cross multiply
992,861,246.42x = 1,370,245,299.16 × 741,529,298.28 - Step 4: Simplify right side
992,861,246.42x = 1,016,077,035,157,583,488 - Step 5: Solve for x
x = 1,016,077,035,157,583,488/992,861,246.42 - Step 6: Final answer
x = 1,023,382,712.16
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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.