Finding the Fourth Proportional to 75,885,918.51, 113,828,497.07 and 18,378,188.13
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Solution
The fourth proportional to 75,885,918.51, 113,828,497.07 and 18,378,188.13 is: 27,567,190.00
Step by Step Solution
- Step 1: Write the proportion equation
75,885,918.51 : 113,828,497.07 = 18,378,188.13 : x - Step 2: Convert to fraction form
75,885,918.51/113,828,497.07 = 18,378,188.13/x - Step 3: Cross multiply
75,885,918.51x = 113,828,497.07 × 18,378,188.13 - Step 4: Simplify right side
75,885,918.51x = 2,091,961,533,615,722.75 - Step 5: Solve for x
x = 2,091,961,533,615,722.75/75,885,918.51 - Step 6: Final answer
x = 27,567,190.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.