Finding the Fourth Proportional to 221,849,761,147.42, 306,126,842,297.28 and 124,196,749,423.70
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Solution
The fourth proportional to 221,849,761,147.42, 306,126,842,297.28 and 124,196,749,423.70 is: 171,377,055,030.50
Step by Step Solution
- Step 1: Write the proportion equation
221,849,761,147.42 : 306,126,842,297.28 = 124,196,749,423.70 : x - Step 2: Convert to fraction form
221,849,761,147.42/306,126,842,297.28 = 124,196,749,423.70/x - Step 3: Cross multiply
221,849,761,147.42x = 306,126,842,297.28 × 124,196,749,423.70 - Step 4: Simplify right side
221,849,761,147.42x = 38,019,958,724,663,810,457,600 - Step 5: Solve for x
x = 38,019,958,724,663,810,457,600/221,849,761,147.42 - Step 6: Final answer
x = 171,377,055,030.50
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1.5x scale
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.