Finding the Fourth Proportional to 638,943,772.44, 958,521,609.96 and 224,312,976.12
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Solution
The fourth proportional to 638,943,772.44, 958,521,609.96 and 224,312,976.12 is: 336,506,660.33
Step by Step Solution
- Step 1: Write the proportion equation
638,943,772.44 : 958,521,609.96 = 224,312,976.12 : x - Step 2: Convert to fraction form
638,943,772.44/958,521,609.96 = 224,312,976.12/x - Step 3: Cross multiply
638,943,772.44x = 958,521,609.96 × 224,312,976.12 - Step 4: Simplify right side
638,943,772.44x = 215,008,835,005,461,440 - Step 5: Solve for x
x = 215,008,835,005,461,440/638,943,772.44 - Step 6: Final answer
x = 336,506,660.33
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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.