Finding the Fourth Proportional to 13,014,081.80, 19,521,122.70 and 6,636,789.80
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Solution
The fourth proportional to 13,014,081.80, 19,521,122.70 and 6,636,789.80 is: 9,955,184.70
Step by Step Solution
- Step 1: Write the proportion equation
13,014,081.80 : 19,521,122.70 = 6,636,789.80 : x - Step 2: Convert to fraction form
13,014,081.80/19,521,122.70 = 6,636,789.80/x - Step 3: Cross multiply
13,014,081.80x = 19,521,122.70 × 6,636,789.80 - Step 4: Simplify right side
13,014,081.80x = 129,557,588,019,908.45 - Step 5: Solve for x
x = 129,557,588,019,908.45/13,014,081.80 - Step 6: Final answer
x = 9,955,184.70
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1.5x scale
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.