Finding the Fourth Proportional to 77,702,126.62, 107,229,277.23 and 42,895,103.08
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Solution
The fourth proportional to 77,702,126.62, 107,229,277.23 and 42,895,103.08 is: 59,195,431.32
Step by Step Solution
- Step 1: Write the proportion equation
77,702,126.62 : 107,229,277.23 = 42,895,103.08 : x - Step 2: Convert to fraction form
77,702,126.62/107,229,277.23 = 42,895,103.08/x - Step 3: Cross multiply
77,702,126.62x = 107,229,277.23 × 42,895,103.08 - Step 4: Simplify right side
77,702,126.62x = 4,599,610,900,153,809 - Step 5: Solve for x
x = 4,599,610,900,153,809/77,702,126.62 - Step 6: Final answer
x = 59,195,431.32
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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.