Finding the Fourth Proportional to 216,993,989.24, 299,416,207.92 and 127,761,130.28
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Solution
The fourth proportional to 216,993,989.24, 299,416,207.92 and 127,761,130.28 is: 176,289,459.82
Step by Step Solution
- Step 1: Write the proportion equation
216,993,989.24 : 299,416,207.92 = 127,761,130.28 : x - Step 2: Convert to fraction form
216,993,989.24/299,416,207.92 = 127,761,130.28/x - Step 3: Cross multiply
216,993,989.24x = 299,416,207.92 × 127,761,130.28 - Step 4: Simplify right side
216,993,989.24x = 38,253,753,146,513,608 - Step 5: Solve for x
x = 38,253,753,146,513,608/216,993,989.24 - Step 6: Final answer
x = 176,289,459.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.