Finding the Fourth Proportional to 28,565,683.99, 39,432,706.25 and 19,285,819.22
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Solution
The fourth proportional to 28,565,683.99, 39,432,706.25 and 19,285,819.22 is: 26,622,574.29
Step by Step Solution
- Step 1: Write the proportion equation
28,565,683.99 : 39,432,706.25 = 19,285,819.22 : x - Step 2: Convert to fraction form
28,565,683.99/39,432,706.25 = 19,285,819.22/x - Step 3: Cross multiply
28,565,683.99x = 39,432,706.25 × 19,285,819.22 - Step 4: Simplify right side
28,565,683.99x = 760,492,044,095,016.75 - Step 5: Solve for x
x = 760,492,044,095,016.75/28,565,683.99 - Step 6: Final answer
x = 26,622,574.29
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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.