Finding the Fourth Proportional to 20,352,444.96, 28,086,395.04 and 11,184,890.88
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Solution
The fourth proportional to 20,352,444.96, 28,086,395.04 and 11,184,890.88 is: 15,435,160.95
Step by Step Solution
- Step 1: Write the proportion equation
20,352,444.96 : 28,086,395.04 = 11,184,890.88 : x - Step 2: Convert to fraction form
20,352,444.96/28,086,395.04 = 11,184,890.88/x - Step 3: Cross multiply
20,352,444.96x = 28,086,395.04 × 11,184,890.88 - Step 4: Simplify right side
20,352,444.96x = 314,143,263,734,973.25 - Step 5: Solve for x
x = 314,143,263,734,973.25/20,352,444.96 - Step 6: Final answer
x = 15,435,160.95
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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.