Finding the Fourth Proportional to 22,839,307.74, 31,520,237.69 and 12,528,023.75
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Solution
The fourth proportional to 22,839,307.74, 31,520,237.69 and 12,528,023.75 is: 17,289,765.99
Step by Step Solution
- Step 1: Write the proportion equation
22,839,307.74 : 31,520,237.69 = 12,528,023.75 : x - Step 2: Convert to fraction form
22,839,307.74/31,520,237.69 = 12,528,023.75/x - Step 3: Cross multiply
22,839,307.74x = 31,520,237.69 × 12,528,023.75 - Step 4: Simplify right side
22,839,307.74x = 394,886,286,165,723.81 - Step 5: Solve for x
x = 394,886,286,165,723.81/22,839,307.74 - Step 6: Final answer
x = 17,289,765.99
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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.