Finding the Fourth Proportional to 10,129,155.00, 13,979,565.07 and 5,777,243.70
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Solution
The fourth proportional to 10,129,155.00, 13,979,565.07 and 5,777,243.70 is: 7,973,355.55
Step by Step Solution
- Step 1: Write the proportion equation
10,129,155.00 : 13,979,565.07 = 5,777,243.70 : x - Step 2: Convert to fraction form
10,129,155.00/13,979,565.07 = 5,777,243.70/x - Step 3: Cross multiply
10,129,155.00x = 13,979,565.07 × 5,777,243.70 - Step 4: Simplify right side
10,129,155.00x = 80,763,354,195,028.08 - Step 5: Solve for x
x = 80,763,354,195,028.08/10,129,155.00 - Step 6: Final answer
x = 7,973,355.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.