Finding the Fourth Proportional to 111,078,329.07, 153,145,655.68 and 86,256,403.95
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Solution
The fourth proportional to 111,078,329.07, 153,145,655.68 and 86,256,403.95 is: 118,923,228.77
Step by Step Solution
- Step 1: Write the proportion equation
111,078,329.07 : 153,145,655.68 = 86,256,403.95 : x - Step 2: Convert to fraction form
111,078,329.07/153,145,655.68 = 86,256,403.95/x - Step 3: Cross multiply
111,078,329.07x = 153,145,655.68 × 86,256,403.95 - Step 4: Simplify right side
111,078,329.07x = 13,209,793,539,521,694 - Step 5: Solve for x
x = 13,209,793,539,521,694/111,078,329.07 - Step 6: Final answer
x = 118,923,228.77
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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.