Finding the Fourth Proportional to 915,829,791.36, 1,373,569,459.20 and 355,591,632.84
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Solution
The fourth proportional to 915,829,791.36, 1,373,569,459.20 and 355,591,632.84 is: 533,319,413.09
Step by Step Solution
- Step 1: Write the proportion equation
915,829,791.36 : 1,373,569,459.20 = 355,591,632.84 : x - Step 2: Convert to fraction form
915,829,791.36/1,373,569,459.20 = 355,591,632.84/x - Step 3: Cross multiply
915,829,791.36x = 1,373,569,459.20 × 355,591,632.84 - Step 4: Simplify right side
915,829,791.36x = 488,429,806,816,083,712 - Step 5: Solve for x
x = 488,429,806,816,083,712/915,829,791.36 - Step 6: Final answer
x = 533,319,413.09
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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.