Finding the Fourth Proportional to 19,782,904.70, 29,674,357.05 and 16,423,672.70
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Solution
The fourth proportional to 19,782,904.70, 29,674,357.05 and 16,423,672.70 is: 24,635,509.05
Step by Step Solution
- Step 1: Write the proportion equation
19,782,904.70 : 29,674,357.05 = 16,423,672.70 : x - Step 2: Convert to fraction form
19,782,904.70/29,674,357.05 = 16,423,672.70/x - Step 3: Cross multiply
19,782,904.70x = 29,674,357.05 × 16,423,672.70 - Step 4: Simplify right side
19,782,904.70x = 487,361,927,772,137.50 - Step 5: Solve for x
x = 487,361,927,772,137.50/19,782,904.70 - Step 6: Final answer
x = 24,635,509.05
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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.