Finding the Fourth Proportional to 913,515,411.92, 1,260,648,120.84 and 495,827,675.60
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Solution
The fourth proportional to 913,515,411.92, 1,260,648,120.84 and 495,827,675.60 is: 684,240,483.90
Step by Step Solution
- Step 1: Write the proportion equation
913,515,411.92 : 1,260,648,120.84 = 495,827,675.60 : x - Step 2: Convert to fraction form
913,515,411.92/1,260,648,120.84 = 495,827,675.60/x - Step 3: Cross multiply
913,515,411.92x = 1,260,648,120.84 × 495,827,675.60 - Step 4: Simplify right side
913,515,411.92x = 625,064,227,505,605,120 - Step 5: Solve for x
x = 625,064,227,505,605,120/913,515,411.92 - Step 6: Final answer
x = 684,240,483.90
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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.