Finding the Fourth Proportional to 1,912,382,551.56, 2,639,018,247.32 and 1,065,566,120.08
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Solution
The fourth proportional to 1,912,382,551.56, 2,639,018,247.32 and 1,065,566,120.08 is: 1,470,442,423.94
Step by Step Solution
- Step 1: Write the proportion equation
1,912,382,551.56 : 2,639,018,247.32 = 1,065,566,120.08 : x - Step 2: Convert to fraction form
1,912,382,551.56/2,639,018,247.32 = 1,065,566,120.08/x - Step 3: Cross multiply
1,912,382,551.56x = 2,639,018,247.32 × 1,065,566,120.08 - Step 4: Simplify right side
1,912,382,551.56x = 2,812,048,434,617,094,656 - Step 5: Solve for x
x = 2,812,048,434,617,094,656/1,912,382,551.56 - Step 6: Final answer
x = 1,470,442,423.94
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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.