Finding the Fourth Proportional to 219,208,734.54, 302,508,028.08 and 131,102,718.75
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Solution
The fourth proportional to 219,208,734.54, 302,508,028.08 and 131,102,718.75 is: 180,921,736.57
Step by Step Solution
- Step 1: Write the proportion equation
219,208,734.54 : 302,508,028.08 = 131,102,718.75 : x - Step 2: Convert to fraction form
219,208,734.54/302,508,028.08 = 131,102,718.75/x - Step 3: Cross multiply
219,208,734.54x = 302,508,028.08 × 131,102,718.75 - Step 4: Simplify right side
219,208,734.54x = 39,659,624,924,989,344 - Step 5: Solve for x
x = 39,659,624,924,989,344/219,208,734.54 - Step 6: Final answer
x = 180,921,736.57
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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.