Finding the Fourth Proportional to 98,841,703.78, 136,406,550.99 and 57,010,206.34
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Solution
The fourth proportional to 98,841,703.78, 136,406,550.99 and 57,010,206.34 is: 78,676,968.53
Step by Step Solution
- Step 1: Write the proportion equation
98,841,703.78 : 136,406,550.99 = 57,010,206.34 : x - Step 2: Convert to fraction form
98,841,703.78/136,406,550.99 = 57,010,206.34/x - Step 3: Cross multiply
98,841,703.78x = 136,406,550.99 × 57,010,206.34 - Step 4: Simplify right side
98,841,703.78x = 7,776,565,618,067,632 - Step 5: Solve for x
x = 7,776,565,618,067,632/98,841,703.78 - Step 6: Final answer
x = 78,676,968.53
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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.