Finding the Fourth Proportional to 10,388,201.40, 15,564,587.40 and 8,864,737.20
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Solution
The fourth proportional to 10,388,201.40, 15,564,587.40 and 8,864,737.20 is: 13,281,989.02
Step by Step Solution
- Step 1: Write the proportion equation
10,388,201.40 : 15,564,587.40 = 8,864,737.20 : x - Step 2: Convert to fraction form
10,388,201.40/15,564,587.40 = 8,864,737.20/x - Step 3: Cross multiply
10,388,201.40x = 15,564,587.40 × 8,864,737.20 - Step 4: Simplify right side
10,388,201.40x = 137,975,976,927,431.27 - Step 5: Solve for x
x = 137,975,976,927,431.27/10,388,201.40 - Step 6: Final answer
x = 13,281,989.02
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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.