Finding the Fourth Proportional to 158,378,021,582.18, 218,562,806,768.37 and 86,119,568,642.66
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Solution
The fourth proportional to 158,378,021,582.18, 218,562,806,768.37 and 86,119,568,642.66 is: 118,845,622,973.35
Step by Step Solution
- Step 1: Write the proportion equation
158,378,021,582.18 : 218,562,806,768.37 = 86,119,568,642.66 : x - Step 2: Convert to fraction form
158,378,021,582.18/218,562,806,768.37 = 86,119,568,642.66/x - Step 3: Cross multiply
158,378,021,582.18x = 218,562,806,768.37 × 86,119,568,642.66 - Step 4: Simplify right side
158,378,021,582.18x = 18,822,534,640,221,074,489,344 - Step 5: Solve for x
x = 18,822,534,640,221,074,489,344/158,378,021,582.18 - Step 6: Final answer
x = 118,845,622,973.35
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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.