Finding the Fourth Proportional to 219,180,110.14, 302,353,878.09 and 135,521,498.44
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Solution
The fourth proportional to 219,180,110.14, 302,353,878.09 and 135,521,498.44 is: 186,948,763.70
Step by Step Solution
- Step 1: Write the proportion equation
219,180,110.14 : 302,353,878.09 = 135,521,498.44 : x - Step 2: Convert to fraction form
219,180,110.14/302,353,878.09 = 135,521,498.44/x - Step 3: Cross multiply
219,180,110.14x = 302,353,878.09 × 135,521,498.44 - Step 4: Simplify right side
219,180,110.14x = 40,975,450,617,901,880 - Step 5: Solve for x
x = 40,975,450,617,901,880/219,180,110.14 - Step 6: Final answer
x = 186,948,763.70
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1.5x scale
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.