Finding the Fourth Proportional to 872,438,130.14, 1,203,968,524.77 and 475,959,918.26
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Solution
The fourth proportional to 872,438,130.14, 1,203,968,524.77 and 475,959,918.26 is: 656,826,817.67
Step by Step Solution
- Step 1: Write the proportion equation
872,438,130.14 : 1,203,968,524.77 = 475,959,918.26 : x - Step 2: Convert to fraction form
872,438,130.14/1,203,968,524.77 = 475,959,918.26/x - Step 3: Cross multiply
872,438,130.14x = 1,203,968,524.77 × 475,959,918.26 - Step 4: Simplify right side
872,438,130.14x = 573,040,760,637,141,952 - Step 5: Solve for x
x = 573,040,760,637,141,952/872,438,130.14 - Step 6: Final answer
x = 656,826,817.67
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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.