Finding the Fourth Proportional to 86,107,106.48, 129,221,184.20 and 77,874,421.04
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Solution
The fourth proportional to 86,107,106.48, 129,221,184.20 and 77,874,421.04 is: 116,866,369.31
Step by Step Solution
- Step 1: Write the proportion equation
86,107,106.48 : 129,221,184.20 = 77,874,421.04 : x - Step 2: Convert to fraction form
86,107,106.48/129,221,184.20 = 77,874,421.04/x - Step 3: Cross multiply
86,107,106.48x = 129,221,184.20 × 77,874,421.04 - Step 4: Simplify right side
86,107,106.48x = 10,063,024,905,678,196 - Step 5: Solve for x
x = 10,063,024,905,678,196/86,107,106.48 - Step 6: Final answer
x = 116,866,369.31
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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.