Finding the Fourth Proportional to 153,457,169.40, 211,768,415.82 and 83,841,051.96
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Solution
The fourth proportional to 153,457,169.40, 211,768,415.82 and 83,841,051.96 is: 115,699,297.88
Step by Step Solution
- Step 1: Write the proportion equation
153,457,169.40 : 211,768,415.82 = 83,841,051.96 : x - Step 2: Convert to fraction form
153,457,169.40/211,768,415.82 = 83,841,051.96/x - Step 3: Cross multiply
153,457,169.40x = 211,768,415.82 × 83,841,051.96 - Step 4: Simplify right side
153,457,169.40x = 17,754,886,754,251,504 - Step 5: Solve for x
x = 17,754,886,754,251,504/153,457,169.40 - Step 6: Final answer
x = 115,699,297.88
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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.