Finding the Fourth Proportional to 245,138,252,854.80, 338,289,849,644.27 and 136,751,263,803.54
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Solution
The fourth proportional to 245,138,252,854.80, 338,289,849,644.27 and 136,751,263,803.54 is: 188,716,220,059.56
Step by Step Solution
- Step 1: Write the proportion equation
245,138,252,854.80 : 338,289,849,644.27 = 136,751,263,803.54 : x - Step 2: Convert to fraction form
245,138,252,854.80/338,289,849,644.27 = 136,751,263,803.54/x - Step 3: Cross multiply
245,138,252,854.80x = 338,289,849,644.27 × 136,751,263,803.54 - Step 4: Simplify right side
245,138,252,854.80x = 46,261,564,470,763,446,075,392 - Step 5: Solve for x
x = 46,261,564,470,763,446,075,392/245,138,252,854.80 - Step 6: Final answer
x = 188,716,220,059.56
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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.