Finding the Fourth Proportional to 12,975,121.88, 19,462,701.75 and 5,298,766.81
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Solution
The fourth proportional to 12,975,121.88, 19,462,701.75 and 5,298,766.81 is: 7,948,157.94
Step by Step Solution
- Step 1: Write the proportion equation
12,975,121.88 : 19,462,701.75 = 5,298,766.81 : x - Step 2: Convert to fraction form
12,975,121.88/19,462,701.75 = 5,298,766.81/x - Step 3: Cross multiply
12,975,121.88x = 19,462,701.75 × 5,298,766.81 - Step 4: Simplify right side
12,975,121.88x = 103,128,318,017,172.17 - Step 5: Solve for x
x = 103,128,318,017,172.17/12,975,121.88 - Step 6: Final answer
x = 7,948,157.94
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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.