Finding the Fourth Proportional to 13,513,284.18, 18,648,101.70 and 7,318,280.69
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Solution
The fourth proportional to 13,513,284.18, 18,648,101.70 and 7,318,280.69 is: 10,099,102.53
Step by Step Solution
- Step 1: Write the proportion equation
13,513,284.18 : 18,648,101.70 = 7,318,280.69 : x - Step 2: Convert to fraction form
13,513,284.18/18,648,101.70 = 7,318,280.69/x - Step 3: Cross multiply
13,513,284.18x = 18,648,101.70 × 7,318,280.69 - Step 4: Simplify right side
13,513,284.18x = 136,472,042,483,025.66 - Step 5: Solve for x
x = 136,472,042,483,025.66/13,513,284.18 - Step 6: Final answer
x = 10,099,102.53
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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.