Finding the Fourth Proportional to 221,299,461.70, 310,272,742.70 and 221,299,461.70
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Solution
The fourth proportional to 221,299,461.70, 310,272,742.70 and 221,299,461.70 is: 310,272,742.70
Step by Step Solution
- Step 1: Write the proportion equation
221,299,461.70 : 310,272,742.70 = 221,299,461.70 : x - Step 2: Convert to fraction form
221,299,461.70/310,272,742.70 = 221,299,461.70/x - Step 3: Cross multiply
221,299,461.70x = 310,272,742.70 × 221,299,461.70 - Step 4: Simplify right side
221,299,461.70x = 68,663,190,939,692,600 - Step 5: Solve for x
x = 68,663,190,939,692,600/221,299,461.70 - Step 6: Final answer
x = 310,272,742.70
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1.5x scale
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.