Finding the Fourth Proportional to 19,937,327.27, 27,518,630.79 and 12,985,328.58
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Solution
The fourth proportional to 19,937,327.27, 27,518,630.79 and 12,985,328.58 is: 17,923,087.58
Step by Step Solution
- Step 1: Write the proportion equation
19,937,327.27 : 27,518,630.79 = 12,985,328.58 : x - Step 2: Convert to fraction form
19,937,327.27/27,518,630.79 = 12,985,328.58/x - Step 3: Cross multiply
19,937,327.27x = 27,518,630.79 × 12,985,328.58 - Step 4: Simplify right side
19,937,327.27x = 357,338,462,834,438.38 - Step 5: Solve for x
x = 357,338,462,834,438.38/19,937,327.27 - Step 6: Final answer
x = 17,923,087.58
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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.