Finding the Fourth Proportional to 1,590,370,872.68, 2,194,866,826.27 and 1,187,785,688.80
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Solution
The fourth proportional to 1,590,370,872.68, 2,194,866,826.27 and 1,187,785,688.80 is: 1,639,260,030.38
Step by Step Solution
- Step 1: Write the proportion equation
1,590,370,872.68 : 2,194,866,826.27 = 1,187,785,688.80 : x - Step 2: Convert to fraction form
1,590,370,872.68/2,194,866,826.27 = 1,187,785,688.80/x - Step 3: Cross multiply
1,590,370,872.68x = 2,194,866,826.27 × 1,187,785,688.80 - Step 4: Simplify right side
1,590,370,872.68x = 2,607,031,405,065,381,888 - Step 5: Solve for x
x = 2,607,031,405,065,381,888/1,590,370,872.68 - Step 6: Final answer
x = 1,639,260,030.38
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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.