Finding the Fourth Proportional to 19,937,456.64, 27,518,808.98 and 12,985,457.49
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Solution
The fourth proportional to 19,937,456.64, 27,518,808.98 and 12,985,457.49 is: 17,923,265.27
Step by Step Solution
- Step 1: Write the proportion equation
19,937,456.64 : 27,518,808.98 = 12,985,457.49 : x - Step 2: Convert to fraction form
19,937,456.64/27,518,808.98 = 12,985,457.49/x - Step 3: Cross multiply
19,937,456.64x = 27,518,808.98 × 12,985,457.49 - Step 4: Simplify right side
19,937,456.64x = 357,344,324,217,683.94 - Step 5: Solve for x
x = 357,344,324,217,683.94/19,937,456.64 - Step 6: Final answer
x = 17,923,265.27
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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.