Finding the Fourth Proportional to 64,353,642.57, 96,509,964.38 and 21,214,805.13
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Solution
The fourth proportional to 64,353,642.57, 96,509,964.38 and 21,214,805.13 is: 31,815,449.84
Step by Step Solution
- Step 1: Write the proportion equation
64,353,642.57 : 96,509,964.38 = 21,214,805.13 : x - Step 2: Convert to fraction form
64,353,642.57/96,509,964.38 = 21,214,805.13/x - Step 3: Cross multiply
64,353,642.57x = 96,509,964.38 × 21,214,805.13 - Step 4: Simplify right side
64,353,642.57x = 2,047,440,087,318,867.25 - Step 5: Solve for x
x = 2,047,440,087,318,867.25/64,353,642.57 - Step 6: Final answer
x = 31,815,449.84
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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.