Finding the Fourth Proportional to 245,138,252,995.74, 338,289,849,838.34 and 136,751,263,944.62
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Solution
The fourth proportional to 245,138,252,995.74, 338,289,849,838.34 and 136,751,263,944.62 is: 188,716,220,254.02
Step by Step Solution
- Step 1: Write the proportion equation
245,138,252,995.74 : 338,289,849,838.34 = 136,751,263,944.62 : x - Step 2: Convert to fraction form
245,138,252,995.74/338,289,849,838.34 = 136,751,263,944.62/x - Step 3: Cross multiply
245,138,252,995.74x = 338,289,849,838.34 × 136,751,263,944.62 - Step 4: Simplify right side
245,138,252,995.74x = 46,261,564,545,028,698,669,056 - Step 5: Solve for x
x = 46,261,564,545,028,698,669,056/245,138,252,995.74 - Step 6: Final answer
x = 188,716,220,254.02
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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.