Finding the Fourth Proportional to 19,559,816.20, 29,339,724.30 and 15,528,737.80
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Solution
The fourth proportional to 19,559,816.20, 29,339,724.30 and 15,528,737.80 is: 23,293,106.70
Step by Step Solution
- Step 1: Write the proportion equation
19,559,816.20 : 29,339,724.30 = 15,528,737.80 : x - Step 2: Convert to fraction form
19,559,816.20/29,339,724.30 = 15,528,737.80/x - Step 3: Cross multiply
19,559,816.20x = 29,339,724.30 × 15,528,737.80 - Step 4: Simplify right side
19,559,816.20x = 455,608,885,778,988.56 - Step 5: Solve for x
x = 455,608,885,778,988.56/19,559,816.20 - Step 6: Final answer
x = 23,293,106.70
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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.