Finding the Fourth Proportional to 19,868,971.41, 29,778,525.27 and 8,496,046.53
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Solution
The fourth proportional to 19,868,971.41, 29,778,525.27 and 8,496,046.53 is: 12,733,408.84
Step by Step Solution
- Step 1: Write the proportion equation
19,868,971.41 : 29,778,525.27 = 8,496,046.53 : x - Step 2: Convert to fraction form
19,868,971.41/29,778,525.27 = 8,496,046.53/x - Step 3: Cross multiply
19,868,971.41x = 29,778,525.27 × 8,496,046.53 - Step 4: Simplify right side
19,868,971.41x = 252,999,736,288,700.78 - Step 5: Solve for x
x = 252,999,736,288,700.78/19,868,971.41 - Step 6: Final answer
x = 12,733,408.84
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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.