Finding the Fourth Proportional to 521,238,291.84, 719,042,780.16 and 332,868,579.84
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Solution
The fourth proportional to 521,238,291.84, 719,042,780.16 and 332,868,579.84 is: 459,188,729.65
Step by Step Solution
- Step 1: Write the proportion equation
521,238,291.84 : 719,042,780.16 = 332,868,579.84 : x - Step 2: Convert to fraction form
521,238,291.84/719,042,780.16 = 332,868,579.84/x - Step 3: Cross multiply
521,238,291.84x = 719,042,780.16 × 332,868,579.84 - Step 4: Simplify right side
521,238,291.84x = 239,346,749,076,064,512 - Step 5: Solve for x
x = 239,346,749,076,064,512/521,238,291.84 - Step 6: Final answer
x = 459,188,729.65
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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.