Finding the Fourth Proportional to 1,545,324,398.97, 2,133,102,373.59 and 918,791,332.23
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Solution
The fourth proportional to 1,545,324,398.97, 2,133,102,373.59 and 918,791,332.23 is: 1,268,261,843.87
Step by Step Solution
- Step 1: Write the proportion equation
1,545,324,398.97 : 2,133,102,373.59 = 918,791,332.23 : x - Step 2: Convert to fraction form
1,545,324,398.97/2,133,102,373.59 = 918,791,332.23/x - Step 3: Cross multiply
1,545,324,398.97x = 2,133,102,373.59 × 918,791,332.23 - Step 4: Simplify right side
1,545,324,398.97x = 1,959,875,971,613,731,328 - Step 5: Solve for x
x = 1,959,875,971,613,731,328/1,545,324,398.97 - Step 6: Final answer
x = 1,268,261,843.87
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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.