Finding the Fourth Proportional to 13,122,364.80, 19,683,547.20 and 7,725,475.20
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Solution
The fourth proportional to 13,122,364.80, 19,683,547.20 and 7,725,475.20 is: 11,588,212.80
Step by Step Solution
- Step 1: Write the proportion equation
13,122,364.80 : 19,683,547.20 = 7,725,475.20 : x - Step 2: Convert to fraction form
13,122,364.80/19,683,547.20 = 7,725,475.20/x - Step 3: Cross multiply
13,122,364.80x = 19,683,547.20 × 7,725,475.20 - Step 4: Simplify right side
13,122,364.80x = 152,064,755,741,629.44 - Step 5: Solve for x
x = 152,064,755,741,629.44/13,122,364.80 - Step 6: Final answer
x = 11,588,212.80
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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.