Finding the Fourth Proportional to 656,740,415.35, 906,301,844.63 and 359,382,720.70
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Solution
The fourth proportional to 656,740,415.35, 906,301,844.63 and 359,382,720.70 is: 495,948,193.66
Step by Step Solution
- Step 1: Write the proportion equation
656,740,415.35 : 906,301,844.63 = 359,382,720.70 : x - Step 2: Convert to fraction form
656,740,415.35/906,301,844.63 = 359,382,720.70/x - Step 3: Cross multiply
656,740,415.35x = 906,301,844.63 × 359,382,720.70 - Step 4: Simplify right side
656,740,415.35x = 325,709,222,698,558,080 - Step 5: Solve for x
x = 325,709,222,698,558,080/656,740,415.35 - Step 6: Final answer
x = 495,948,193.66
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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.