Finding the Fourth Proportional to 13,331,909.88, 19,998,901.62 and 4,357,369.08
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Solution
The fourth proportional to 13,331,909.88, 19,998,901.62 and 4,357,369.08 is: 6,536,392.49
Step by Step Solution
- Step 1: Write the proportion equation
13,331,909.88 : 19,998,901.62 = 4,357,369.08 : x - Step 2: Convert to fraction form
13,331,909.88/19,998,901.62 = 4,357,369.08/x - Step 3: Cross multiply
13,331,909.88x = 19,998,901.62 × 4,357,369.08 - Step 4: Simplify right side
13,331,909.88x = 87,142,595,552,949.92 - Step 5: Solve for x
x = 87,142,595,552,949.92/13,331,909.88 - Step 6: Final answer
x = 6,536,392.49
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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.