Finding the Fourth Proportional to 759,641,931.24, 1,139,428,629.18 and 316,802,230.44
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Solution
The fourth proportional to 759,641,931.24, 1,139,428,629.18 and 316,802,230.44 is: 475,189,054.61
Step by Step Solution
- Step 1: Write the proportion equation
759,641,931.24 : 1,139,428,629.18 = 316,802,230.44 : x - Step 2: Convert to fraction form
759,641,931.24/1,139,428,629.18 = 316,802,230.44/x - Step 3: Cross multiply
759,641,931.24x = 1,139,428,629.18 × 316,802,230.44 - Step 4: Simplify right side
759,641,931.24x = 360,973,531,151,415,680 - Step 5: Solve for x
x = 360,973,531,151,415,680/759,641,931.24 - Step 6: Final answer
x = 475,189,054.61
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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.