Finding the Fourth Proportional to 76,540,860.67, 114,811,747.71 and 19,033,131.84
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Solution
The fourth proportional to 76,540,860.67, 114,811,747.71 and 19,033,131.84 is: 28,549,811.32
Step by Step Solution
- Step 1: Write the proportion equation
76,540,860.67 : 114,811,747.71 = 19,033,131.84 : x - Step 2: Convert to fraction form
76,540,860.67/114,811,747.71 = 19,033,131.84/x - Step 3: Cross multiply
76,540,860.67x = 114,811,747.71 × 19,033,131.84 - Step 4: Simplify right side
76,540,860.67x = 2,185,227,130,496,812.75 - Step 5: Solve for x
x = 2,185,227,130,496,812.75/76,540,860.67 - Step 6: Final answer
x = 28,549,811.32
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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.