Finding the Fourth Proportional to 1,279,351,562.21, 1,919,027,619.80 and 461,463,795.17
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Solution
The fourth proportional to 1,279,351,562.21, 1,919,027,619.80 and 461,463,795.17 is: 692,195,792.48
Step by Step Solution
- Step 1: Write the proportion equation
1,279,351,562.21 : 1,919,027,619.80 = 461,463,795.17 : x - Step 2: Convert to fraction form
1,279,351,562.21/1,919,027,619.80 = 461,463,795.17/x - Step 3: Cross multiply
1,279,351,562.21x = 1,919,027,619.80 × 461,463,795.17 - Step 4: Simplify right side
1,279,351,562.21x = 885,561,768,457,057,408 - Step 5: Solve for x
x = 885,561,768,457,057,408/1,279,351,562.21 - Step 6: Final answer
x = 692,195,792.48
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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.