Finding the Fourth Proportional to 163,128,133.76, 225,121,696.43 and 100,440,396.48
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Solution
The fourth proportional to 163,128,133.76, 225,121,696.43 and 100,440,396.48 is: 138,610,746.81
Step by Step Solution
- Step 1: Write the proportion equation
163,128,133.76 : 225,121,696.43 = 100,440,396.48 : x - Step 2: Convert to fraction form
163,128,133.76/225,121,696.43 = 100,440,396.48/x - Step 3: Cross multiply
163,128,133.76x = 225,121,696.43 × 100,440,396.48 - Step 4: Simplify right side
163,128,133.76x = 22,611,312,445,679,404 - Step 5: Solve for x
x = 22,611,312,445,679,404/163,128,133.76 - Step 6: Final answer
x = 138,610,746.81
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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.