Finding the Fourth Proportional to 90,292,203.36, 135,403,646.76 and 38,443,934.07
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Solution
The fourth proportional to 90,292,203.36, 135,403,646.76 and 38,443,934.07 is: 57,651,144.56
Step by Step Solution
- Step 1: Write the proportion equation
90,292,203.36 : 135,403,646.76 = 38,443,934.07 : x - Step 2: Convert to fraction form
90,292,203.36/135,403,646.76 = 38,443,934.07/x - Step 3: Cross multiply
90,292,203.36x = 135,403,646.76 × 38,443,934.07 - Step 4: Simplify right side
90,292,203.36x = 5,205,448,868,879,009 - Step 5: Solve for x
x = 5,205,448,868,879,009/90,292,203.36 - Step 6: Final answer
x = 57,651,144.56
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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.