Finding the Fourth Proportional to 278,211,460.16, 417,318,629.88 and 163,115,289.92
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Solution
The fourth proportional to 278,211,460.16, 417,318,629.88 and 163,115,289.92 is: 244,673,778.94
Step by Step Solution
- Step 1: Write the proportion equation
278,211,460.16 : 417,318,629.88 = 163,115,289.92 : x - Step 2: Convert to fraction form
278,211,460.16/417,318,629.88 = 163,115,289.92/x - Step 3: Cross multiply
278,211,460.16x = 417,318,629.88 × 163,115,289.92 - Step 4: Simplify right side
278,211,460.16x = 68,071,049,301,893,368 - Step 5: Solve for x
x = 68,071,049,301,893,368/278,211,460.16 - Step 6: Final answer
x = 244,673,778.94
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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.