Finding the Fourth Proportional to 38,534,779.20, 53,126,550.99 and 30,613,603.71
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Solution
The fourth proportional to 38,534,779.20, 53,126,550.99 and 30,613,603.71 is: 42,205,903.66
Step by Step Solution
- Step 1: Write the proportion equation
38,534,779.20 : 53,126,550.99 = 30,613,603.71 : x - Step 2: Convert to fraction form
38,534,779.20/53,126,550.99 = 30,613,603.71/x - Step 3: Cross multiply
38,534,779.20x = 53,126,550.99 × 30,613,603.71 - Step 4: Simplify right side
38,534,779.20x = 1,626,395,178,486,968.25 - Step 5: Solve for x
x = 1,626,395,178,486,968.25/38,534,779.20 - Step 6: Final answer
x = 42,205,903.66
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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.