Finding the Fourth Proportional to 352,732,471.21, 486,772,702.95 and 193,972,831.57
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Solution
The fourth proportional to 352,732,471.21, 486,772,702.95 and 193,972,831.57 is: 267,683,548.38
Step by Step Solution
- Step 1: Write the proportion equation
352,732,471.21 : 486,772,702.95 = 193,972,831.57 : x - Step 2: Convert to fraction form
352,732,471.21/486,772,702.95 = 193,972,831.57/x - Step 3: Cross multiply
352,732,471.21x = 486,772,702.95 × 193,972,831.57 - Step 4: Simplify right side
352,732,471.21x = 94,420,679,522,193,984 - Step 5: Solve for x
x = 94,420,679,522,193,984/352,732,471.21 - Step 6: Final answer
x = 267,683,548.38
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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.