Finding the Fourth Proportional to 221,299,228.20, 310,272,415.80 and 221,299,228.20
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Solution
The fourth proportional to 221,299,228.20, 310,272,415.80 and 221,299,228.20 is: 310,272,415.80
Step by Step Solution
- Step 1: Write the proportion equation
221,299,228.20 : 310,272,415.80 = 221,299,228.20 : x - Step 2: Convert to fraction form
221,299,228.20/310,272,415.80 = 221,299,228.20/x - Step 3: Cross multiply
221,299,228.20x = 310,272,415.80 × 221,299,228.20 - Step 4: Simplify right side
221,299,228.20x = 68,663,046,148,289,488 - Step 5: Solve for x
x = 68,663,046,148,289,488/221,299,228.20 - Step 6: Final answer
x = 310,272,415.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.