Finding the Fourth Proportional to 221,567,897.34, 305,747,685.99 and 122,447,458.62
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Solution
The fourth proportional to 221,567,897.34, 305,747,685.99 and 122,447,458.62 is: 168,968,643.82
Step by Step Solution
- Step 1: Write the proportion equation
221,567,897.34 : 305,747,685.99 = 122,447,458.62 : x - Step 2: Convert to fraction form
221,567,897.34/305,747,685.99 = 122,447,458.62/x - Step 3: Cross multiply
221,567,897.34x = 305,747,685.99 × 122,447,458.62 - Step 4: Simplify right side
221,567,897.34x = 37,438,027,128,421,280 - Step 5: Solve for x
x = 37,438,027,128,421,280/221,567,897.34 - Step 6: Final answer
x = 168,968,643.82
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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.