Finding the Fourth Proportional to 23,678,461.09, 32,658,270.80 and 20,376,321.07
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Solution
The fourth proportional to 23,678,461.09, 32,658,270.80 and 20,376,321.07 is: 28,103,828.57
Step by Step Solution
- Step 1: Write the proportion equation
23,678,461.09 : 32,658,270.80 = 20,376,321.07 : x - Step 2: Convert to fraction form
23,678,461.09/32,658,270.80 = 20,376,321.07/x - Step 3: Cross multiply
23,678,461.09x = 32,658,270.80 × 20,376,321.07 - Step 4: Simplify right side
23,678,461.09x = 665,455,411,248,514.50 - Step 5: Solve for x
x = 665,455,411,248,514.50/23,678,461.09 - Step 6: Final answer
x = 28,103,828.57
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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.