Finding the Fourth Proportional to 815,761,963.76, 1,125,751,671.99 and 444,483,995.13
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Solution
The fourth proportional to 815,761,963.76, 1,125,751,671.99 and 444,483,995.13 is: 613,388,001.55
Step by Step Solution
- Step 1: Write the proportion equation
815,761,963.76 : 1,125,751,671.99 = 444,483,995.13 : x - Step 2: Convert to fraction form
815,761,963.76/1,125,751,671.99 = 444,483,995.13/x - Step 3: Cross multiply
815,761,963.76x = 1,125,751,671.99 × 444,483,995.13 - Step 4: Simplify right side
815,761,963.76x = 500,378,600,690,392,512 - Step 5: Solve for x
x = 500,378,600,690,392,512/815,761,963.76 - Step 6: Final answer
x = 613,388,001.55
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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.