Finding the Fourth Proportional to 1,219,110,478.84, 1,682,512,025.93 and 683,406,832
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Solution
The fourth proportional to 1,219,110,478.84, 1,682,512,025.93 and 683,406,832 is: 943,179,665.34
Step by Step Solution
- Step 1: Write the proportion equation
1,219,110,478.84 : 1,682,512,025.93 = 683,406,832 : x - Step 2: Convert to fraction form
1,219,110,478.84/1,682,512,025.93 = 683,406,832/x - Step 3: Cross multiply
1,219,110,478.84x = 1,682,512,025.93 × 683,406,832 - Step 4: Simplify right side
1,219,110,478.84x = 1,149,840,213,442,723,200 - Step 5: Solve for x
x = 1,149,840,213,442,723,200/1,219,110,478.84 - Step 6: Final answer
x = 943,179,665.34
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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.