Finding the Fourth Proportional to 398,103,686.70, 597,155,530.05 and 225,916,802.70
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Solution
The fourth proportional to 398,103,686.70, 597,155,530.05 and 225,916,802.70 is: 338,875,204.05
Step by Step Solution
- Step 1: Write the proportion equation
398,103,686.70 : 597,155,530.05 = 225,916,802.70 : x - Step 2: Convert to fraction form
398,103,686.70/597,155,530.05 = 225,916,802.70/x - Step 3: Cross multiply
398,103,686.70x = 597,155,530.05 × 225,916,802.70 - Step 4: Simplify right side
398,103,686.70x = 134,907,468,063,519,760 - Step 5: Solve for x
x = 134,907,468,063,519,760/398,103,686.70 - Step 6: Final answer
x = 338,875,204.05
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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.