Finding the Fourth Proportional to 5,581,815.21, 8,373,302.06 and 1,538,303.71
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Solution
The fourth proportional to 5,581,815.21, 8,373,302.06 and 1,538,303.71 is: 2,307,615.20
Step by Step Solution
- Step 1: Write the proportion equation
5,581,815.21 : 8,373,302.06 = 1,538,303.71 : x - Step 2: Convert to fraction form
5,581,815.21/8,373,302.06 = 1,538,303.71/x - Step 3: Cross multiply
5,581,815.21x = 8,373,302.06 × 1,538,303.71 - Step 4: Simplify right side
5,581,815.21x = 12,880,681,623,848.64 - Step 5: Solve for x
x = 12,880,681,623,848.64/5,581,815.21 - Step 6: Final answer
x = 2,307,615.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.