Finding the Fourth Proportional to 620,014,029.55, 855,618,983.56 and 341,555,553.08
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Solution
The fourth proportional to 620,014,029.55, 855,618,983.56 and 341,555,553.08 is: 471,346,455.45
Step by Step Solution
- Step 1: Write the proportion equation
620,014,029.55 : 855,618,983.56 = 341,555,553.08 : x - Step 2: Convert to fraction form
620,014,029.55/855,618,983.56 = 341,555,553.08/x - Step 3: Cross multiply
620,014,029.55x = 855,618,983.56 × 341,555,553.08 - Step 4: Simplify right side
620,014,029.55x = 292,241,415,156,909,632 - Step 5: Solve for x
x = 292,241,415,156,909,632/620,014,029.55 - Step 6: Final answer
x = 471,346,455.45
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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.