Finding the Fourth Proportional to 1,387,396,155.06, 2,080,263,139.02 and 441,585,697.74
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Solution
The fourth proportional to 1,387,396,155.06, 2,080,263,139.02 and 441,585,697.74 is: 662,114,023.00
Step by Step Solution
- Step 1: Write the proportion equation
1,387,396,155.06 : 2,080,263,139.02 = 441,585,697.74 : x - Step 2: Convert to fraction form
1,387,396,155.06/2,080,263,139.02 = 441,585,697.74/x - Step 3: Cross multiply
1,387,396,155.06x = 2,080,263,139.02 × 441,585,697.74 - Step 4: Simplify right side
1,387,396,155.06x = 918,614,449,726,949,376 - Step 5: Solve for x
x = 918,614,449,726,949,376/1,387,396,155.06 - Step 6: Final answer
x = 662,114,023.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.