Finding the Fourth Proportional to 913,458,358.92, 1,260,573,783.66 and 495,770,650.68
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Solution
The fourth proportional to 913,458,358.92, 1,260,573,783.66 and 495,770,650.68 is: 684,164,175.47
Step by Step Solution
- Step 1: Write the proportion equation
913,458,358.92 : 1,260,573,783.66 = 495,770,650.68 : x - Step 2: Convert to fraction form
913,458,358.92/1,260,573,783.66 = 495,770,650.68/x - Step 3: Cross multiply
913,458,358.92x = 1,260,573,783.66 × 495,770,650.68 - Step 4: Simplify right side
913,458,358.92x = 624,955,484,955,267,840 - Step 5: Solve for x
x = 624,955,484,955,267,840/913,458,358.92 - Step 6: Final answer
x = 684,164,175.47
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Double scale
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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.