Finding the Fourth Proportional to 1,788,415,008.35, 2,682,621,881.12 and 478,283,010.17
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Solution
The fourth proportional to 1,788,415,008.35, 2,682,621,881.12 and 478,283,010.17 is: 717,424,346.39
Step by Step Solution
- Step 1: Write the proportion equation
1,788,415,008.35 : 2,682,621,881.12 = 478,283,010.17 : x - Step 2: Convert to fraction form
1,788,415,008.35/2,682,621,881.12 = 478,283,010.17/x - Step 3: Cross multiply
1,788,415,008.35x = 2,682,621,881.12 × 478,283,010.17 - Step 4: Simplify right side
1,788,415,008.35x = 1,283,052,468,437,764,096 - Step 5: Solve for x
x = 1,283,052,468,437,764,096/1,788,415,008.35 - Step 6: Final answer
x = 717,424,346.39
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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.