Finding the Fourth Proportional to 6,402,128,806.17, 8,835,861,889.49 and 3,688,876,958.87
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Solution
The fourth proportional to 6,402,128,806.17, 8,835,861,889.49 and 3,688,876,958.87 is: 5,091,182,686.67
Step by Step Solution
- Step 1: Write the proportion equation
6,402,128,806.17 : 8,835,861,889.49 = 3,688,876,958.87 : x - Step 2: Convert to fraction form
6,402,128,806.17/8,835,861,889.49 = 3,688,876,958.87/x - Step 3: Cross multiply
6,402,128,806.17x = 8,835,861,889.49 × 3,688,876,958.87 - Step 4: Simplify right side
6,402,128,806.17x = 32,594,407,335,834,578,944 - Step 5: Solve for x
x = 32,594,407,335,834,578,944/6,402,128,806.17 - Step 6: Final answer
x = 5,091,182,686.67
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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.