Finding the Fourth Proportional to 5,115,527,707.79, 7,059,439,177.23 and 2,887,859,896.04
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Solution
The fourth proportional to 5,115,527,707.79, 7,059,439,177.23 and 2,887,859,896.04 is: 3,985,252,832.74
Step by Step Solution
- Step 1: Write the proportion equation
5,115,527,707.79 : 7,059,439,177.23 = 2,887,859,896.04 : x - Step 2: Convert to fraction form
5,115,527,707.79/7,059,439,177.23 = 2,887,859,896.04/x - Step 3: Cross multiply
5,115,527,707.79x = 7,059,439,177.23 × 2,887,859,896.04 - Step 4: Simplify right side
5,115,527,707.79x = 20,386,671,288,447,655,936 - Step 5: Solve for x
x = 20,386,671,288,447,655,936/5,115,527,707.79 - Step 6: Final answer
x = 3,985,252,832.74
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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.