Finding the Fourth Proportional to 19,419,871.80, 29,126,541.32 and 7,121,291.88
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Solution
The fourth proportional to 19,419,871.80, 29,126,541.32 and 7,121,291.88 is: 10,680,740.03
Step by Step Solution
- Step 1: Write the proportion equation
19,419,871.80 : 29,126,541.32 = 7,121,291.88 : x - Step 2: Convert to fraction form
19,419,871.80/29,126,541.32 = 7,121,291.88/x - Step 3: Cross multiply
19,419,871.80x = 29,126,541.32 × 7,121,291.88 - Step 4: Simplify right side
19,419,871.80x = 207,418,602,194,600.47 - Step 5: Solve for x
x = 207,418,602,194,600.47/19,419,871.80 - Step 6: Final answer
x = 10,680,740.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.