Finding the Fourth Proportional to 5,578,918.50, 7,698,291.51 and 3,130,968.09
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Solution
The fourth proportional to 5,578,918.50, 7,698,291.51 and 3,130,968.09 is: 4,320,390.25
Step by Step Solution
- Step 1: Write the proportion equation
5,578,918.50 : 7,698,291.51 = 3,130,968.09 : x - Step 2: Convert to fraction form
5,578,918.50/7,698,291.51 = 3,130,968.09/x - Step 3: Cross multiply
5,578,918.50x = 7,698,291.51 × 3,130,968.09 - Step 4: Simplify right side
5,578,918.50x = 24,103,105,065,327.91 - Step 5: Solve for x
x = 24,103,105,065,327.91/5,578,918.50 - Step 6: Final answer
x = 4,320,390.25
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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.