Finding the Fourth Proportional to 19,468,911.96, 26,866,421.76 and 11,208,700.44
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Solution
The fourth proportional to 19,468,911.96, 26,866,421.76 and 11,208,700.44 is: 15,467,616.99
Step by Step Solution
- Step 1: Write the proportion equation
19,468,911.96 : 26,866,421.76 = 11,208,700.44 : x - Step 2: Convert to fraction form
19,468,911.96/26,866,421.76 = 11,208,700.44/x - Step 3: Cross multiply
19,468,911.96x = 26,866,421.76 × 11,208,700.44 - Step 4: Simplify right side
19,468,911.96x = 301,137,673,402,537.56 - Step 5: Solve for x
x = 301,137,673,402,537.56/19,468,911.96 - Step 6: Final answer
x = 15,467,616.99
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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.