Finding the Fourth Proportional to 148,388,125,669.41, 221,582,940,559.42 and 121,183,773,696.78
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Solution
The fourth proportional to 148,388,125,669.41, 221,582,940,559.42 and 121,183,773,696.78 is: 180,959,607,129.50
Step by Step Solution
- Step 1: Write the proportion equation
148,388,125,669.41 : 221,582,940,559.42 = 121,183,773,696.78 : x - Step 2: Convert to fraction form
148,388,125,669.41/221,582,940,559.42 = 121,183,773,696.78/x - Step 3: Cross multiply
148,388,125,669.41x = 221,582,940,559.42 × 121,183,773,696.78 - Step 4: Simplify right side
148,388,125,669.41x = 26,852,256,923,819,807,080,448 - Step 5: Solve for x
x = 26,852,256,923,819,807,080,448/148,388,125,669.41 - Step 6: Final answer
x = 180,959,607,129.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.