Finding the Fourth Proportional to 1,365,190,828.47, 1,883,949,930.86 and 738,645,509.07
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Solution
The fourth proportional to 1,365,190,828.47, 1,883,949,930.86 and 738,645,509.07 is: 1,019,323,545.63
Step by Step Solution
- Step 1: Write the proportion equation
1,365,190,828.47 : 1,883,949,930.86 = 738,645,509.07 : x - Step 2: Convert to fraction form
1,365,190,828.47/1,883,949,930.86 = 738,645,509.07/x - Step 3: Cross multiply
1,365,190,828.47x = 1,883,949,930.86 × 738,645,509.07 - Step 4: Simplify right side
1,365,190,828.47x = 1,391,571,155,738,782,976 - Step 5: Solve for x
x = 1,391,571,155,738,782,976/1,365,190,828.47 - Step 6: Final answer
x = 1,019,323,545.63
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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.