Finding the Fourth Proportional to 13,341,958.86, 18,411,918.96 and 7,230,387.36
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Solution
The fourth proportional to 13,341,958.86, 18,411,918.96 and 7,230,387.36 is: 9,977,943.08
Step by Step Solution
- Step 1: Write the proportion equation
13,341,958.86 : 18,411,918.96 = 7,230,387.36 : x - Step 2: Convert to fraction form
13,341,958.86/18,411,918.96 = 7,230,387.36/x - Step 3: Cross multiply
13,341,958.86x = 18,411,918.96 × 7,230,387.36 - Step 4: Simplify right side
13,341,958.86x = 133,125,306,121,728.36 - Step 5: Solve for x
x = 133,125,306,121,728.36/13,341,958.86 - Step 6: Final answer
x = 9,977,943.08
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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.