Finding the Fourth Proportional to 22,385,913.21, 30,889,813.55 and 14,122,859.13
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Solution
The fourth proportional to 22,385,913.21, 30,889,813.55 and 14,122,859.13 is: 19,487,812.77
Step by Step Solution
- Step 1: Write the proportion equation
22,385,913.21 : 30,889,813.55 = 14,122,859.13 : x - Step 2: Convert to fraction form
22,385,913.21/30,889,813.55 = 14,122,859.13/x - Step 3: Cross multiply
22,385,913.21x = 30,889,813.55 × 14,122,859.13 - Step 4: Simplify right side
22,385,913.21x = 436,252,485,248,000.94 - Step 5: Solve for x
x = 436,252,485,248,000.94/22,385,913.21 - Step 6: Final answer
x = 19,487,812.77
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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.