Finding the Fourth Proportional to 221,567,901.34, 305,747,691.50 and 122,447,462.62
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Solution
The fourth proportional to 221,567,901.34, 305,747,691.50 and 122,447,462.62 is: 168,968,649.34
Step by Step Solution
- Step 1: Write the proportion equation
221,567,901.34 : 305,747,691.50 = 122,447,462.62 : x - Step 2: Convert to fraction form
221,567,901.34/305,747,691.50 = 122,447,462.62/x - Step 3: Cross multiply
221,567,901.34x = 305,747,691.50 × 122,447,462.62 - Step 4: Simplify right side
221,567,901.34x = 37,438,029,026,097,544 - Step 5: Solve for x
x = 37,438,029,026,097,544/221,567,901.34 - Step 6: Final answer
x = 168,968,649.34
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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.