Finding the Fourth Proportional to 716,107,226.56, 988,249,944.14 and 398,585,112.18
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Solution
The fourth proportional to 716,107,226.56, 988,249,944.14 and 398,585,112.18 is: 550,059,684.14
Step by Step Solution
- Step 1: Write the proportion equation
716,107,226.56 : 988,249,944.14 = 398,585,112.18 : x - Step 2: Convert to fraction form
716,107,226.56/988,249,944.14 = 398,585,112.18/x - Step 3: Cross multiply
716,107,226.56x = 988,249,944.14 × 398,585,112.18 - Step 4: Simplify right side
716,107,226.56x = 393,901,714,847,737,472 - Step 5: Solve for x
x = 393,901,714,847,737,472/716,107,226.56 - Step 6: Final answer
x = 550,059,684.14
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1.5x scale
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.