Finding the Fourth Proportional to 157,464,138.20, 236,196,207.30 and 42,460,305.80
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Solution
The fourth proportional to 157,464,138.20, 236,196,207.30 and 42,460,305.80 is: 63,690,458.70
Step by Step Solution
- Step 1: Write the proportion equation
157,464,138.20 : 236,196,207.30 = 42,460,305.80 : x - Step 2: Convert to fraction form
157,464,138.20/236,196,207.30 = 42,460,305.80/x - Step 3: Cross multiply
157,464,138.20x = 236,196,207.30 × 42,460,305.80 - Step 4: Simplify right side
157,464,138.20x = 10,028,963,190,758,192 - Step 5: Solve for x
x = 10,028,963,190,758,192/157,464,138.20 - Step 6: Final answer
x = 63,690,458.70
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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.