Finding the Fourth Proportional to 13,241,720.52, 18,272,991.06 and 7,735,605.48
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Solution
The fourth proportional to 13,241,720.52, 18,272,991.06 and 7,735,605.48 is: 10,674,794.83
Step by Step Solution
- Step 1: Write the proportion equation
13,241,720.52 : 18,272,991.06 = 7,735,605.48 : x - Step 2: Convert to fraction form
13,241,720.52/18,272,991.06 = 7,735,605.48/x - Step 3: Cross multiply
13,241,720.52x = 18,272,991.06 × 7,735,605.48 - Step 4: Simplify right side
13,241,720.52x = 141,352,649,779,727 - Step 5: Solve for x
x = 141,352,649,779,727/13,241,720.52 - Step 6: Final answer
x = 10,674,794.83
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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.