Finding the Fourth Proportional to 1,945,450,555.24, 2,918,478,163.74 and 653,288,374.12
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Solution
The fourth proportional to 1,945,450,555.24, 2,918,478,163.74 and 653,288,374.12 is: 980,034,084.83
Step by Step Solution
- Step 1: Write the proportion equation
1,945,450,555.24 : 2,918,478,163.74 = 653,288,374.12 : x - Step 2: Convert to fraction form
1,945,450,555.24/2,918,478,163.74 = 653,288,374.12/x - Step 3: Cross multiply
1,945,450,555.24x = 2,918,478,163.74 × 653,288,374.12 - Step 4: Simplify right side
1,945,450,555.24x = 1,906,607,854,494,427,648 - Step 5: Solve for x
x = 1,906,607,854,494,427,648/1,945,450,555.24 - Step 6: Final answer
x = 980,034,084.83
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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.