Finding the Fourth Proportional to 128,480,562.01, 177,303,400.48 and 69,743,266.93
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Solution
The fourth proportional to 128,480,562.01, 177,303,400.48 and 69,743,266.93 is: 96,245,830.45
Step by Step Solution
- Step 1: Write the proportion equation
128,480,562.01 : 177,303,400.48 = 69,743,266.93 : x - Step 2: Convert to fraction form
128,480,562.01/177,303,400.48 = 69,743,266.93/x - Step 3: Cross multiply
128,480,562.01x = 177,303,400.48 × 69,743,266.93 - Step 4: Simplify right side
128,480,562.01x = 12,365,718,387,273,330 - Step 5: Solve for x
x = 12,365,718,387,273,330/128,480,562.01 - Step 6: Final answer
x = 96,245,830.45
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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.