Finding the Fourth Proportional to 19,574,484.20, 29,361,726.30 and 15,543,405.80
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Solution
The fourth proportional to 19,574,484.20, 29,361,726.30 and 15,543,405.80 is: 23,315,108.70
Step by Step Solution
- Step 1: Write the proportion equation
19,574,484.20 : 29,361,726.30 = 15,543,405.80 : x - Step 2: Convert to fraction form
19,574,484.20/29,361,726.30 = 15,543,405.80/x - Step 3: Cross multiply
19,574,484.20x = 29,361,726.30 × 15,543,405.80 - Step 4: Simplify right side
19,574,484.20x = 456,381,226,869,432.56 - Step 5: Solve for x
x = 456,381,226,869,432.56/19,574,484.20 - Step 6: Final answer
x = 23,315,108.70
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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.