Finding the Fourth Proportional to 19,249,367.40, 28,874,051.10 and 12,083,005.80
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Solution
The fourth proportional to 19,249,367.40, 28,874,051.10 and 12,083,005.80 is: 18,124,508.70
Step by Step Solution
- Step 1: Write the proportion equation
19,249,367.40 : 28,874,051.10 = 12,083,005.80 : x - Step 2: Convert to fraction form
19,249,367.40/28,874,051.10 = 12,083,005.80/x - Step 3: Cross multiply
19,249,367.40x = 28,874,051.10 × 12,083,005.80 - Step 4: Simplify right side
19,249,367.40x = 348,885,326,910,796.44 - Step 5: Solve for x
x = 348,885,326,910,796.44/19,249,367.40 - Step 6: Final answer
x = 18,124,508.70
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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.