Finding the Fourth Proportional to 84,230,830.80, 126,346,246.20 and 79,979,302.80
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Solution
The fourth proportional to 84,230,830.80, 126,346,246.20 and 79,979,302.80 is: 119,968,954.20
Step by Step Solution
- Step 1: Write the proportion equation
84,230,830.80 : 126,346,246.20 = 79,979,302.80 : x - Step 2: Convert to fraction form
84,230,830.80/126,346,246.20 = 79,979,302.80/x - Step 3: Cross multiply
84,230,830.80x = 126,346,246.20 × 79,979,302.80 - Step 4: Simplify right side
84,230,830.80x = 10,105,084,682,473,150 - Step 5: Solve for x
x = 10,105,084,682,473,150/84,230,830.80 - Step 6: Final answer
x = 119,968,954.20
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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.