Finding the Fourth Proportional to 13,122,125.70, 19,683,188.55 and 7,358,943.30
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Solution
The fourth proportional to 13,122,125.70, 19,683,188.55 and 7,358,943.30 is: 11,038,414.95
Step by Step Solution
- Step 1: Write the proportion equation
13,122,125.70 : 19,683,188.55 = 7,358,943.30 : x - Step 2: Convert to fraction form
13,122,125.70/19,683,188.55 = 7,358,943.30/x - Step 3: Cross multiply
13,122,125.70x = 19,683,188.55 × 7,358,943.30 - Step 4: Simplify right side
13,122,125.70x = 144,847,468,502,659.22 - Step 5: Solve for x
x = 144,847,468,502,659.22/13,122,125.70 - Step 6: Final answer
x = 11,038,414.95
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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.