Finding the Fourth Proportional to 472,778,735.62, 652,608,759.45 and 284,615,778.82
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Solution
The fourth proportional to 472,778,735.62, 652,608,759.45 and 284,615,778.82 is: 392,874,586.65
Step by Step Solution
- Step 1: Write the proportion equation
472,778,735.62 : 652,608,759.45 = 284,615,778.82 : x - Step 2: Convert to fraction form
472,778,735.62/652,608,759.45 = 284,615,778.82/x - Step 3: Cross multiply
472,778,735.62x = 652,608,759.45 × 284,615,778.82 - Step 4: Simplify right side
472,778,735.62x = 185,742,750,335,615,808 - Step 5: Solve for x
x = 185,742,750,335,615,808/472,778,735.62 - Step 6: Final answer
x = 392,874,586.65
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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.